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New at Medino from 1 October 2026 · nuclear medicine & thyroid

The thyroid in Vienna: the small organ that has a say everywhere

Dr. med. univ. Bamdad Heydari – specialist in nuclear medicine

Tiredness, palpitations, hair loss, changes in weight, an unfulfilled wish for a child: very different complaints, one possible common denominator. Conversation, ultrasound and laboratory in a single appointment – with findings you understand.

Send an appointment request What brings you to us?

Dr. Heydari will hold consultations at the Medino Medical Centre from 1 October 2026. Appointments are already being allocated: Send your appointment request online – we will fix your preferred time and confirm it to you.

Already a patient? Then you do not need a form. You can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

Specialist in nuclear medicine Ultrasound & laboratory in the building No referral needed German · English · Farsi
Thyroid ultrasound with Dr. med. univ. Bamdad Heydari at the Medino Medical Centre in Vienna Dr. med. univ. Bamdad HeydariSpecialist in nuclear medicine · at Medino from 1 October 2026
One woman in fiveis affected by a thyroid dysfunction
SpecialistNuclear medicine – the field for organ function
Patients’ ChoiceDocFinder award – every year since 2019
1 appointmentConversation, ultrasound & laboratory combined

How the thyroid controls the body

An organ that has a say everywhere – which is why it is so often overlooked

Thyroid hormones act on almost every organ system. That is precisely why those affected often end up first with the cardiologist, the gastroenterologist or the dermatologist – and nobody looks at the neck. Dr. Heydari takes the opposite route: first the control centre, then the symptoms.

"Women in particular often suffer from a thyroid dysfunction. One woman in five is affected." Dr. med. univ. Bamdad Heydari, specialist in nuclear medicine

Stomach & intestines

Thyroid hormones increase intestinal motility and the metabolism of sugar, fat and connective tissue.

UnderactivityConstipation, bloating, a feeling of fullness, nausea, weight gain, constantly feeling cold.
OveractivityRavenous appetite, diarrhoea, abdominal pain, weight loss despite a normal or increased food intake.

Brain & mind

The hormones act on the nervous system and help determine energy consumption and basal metabolic rate.

UnderactivityPoor concentration, lack of drive, low mood up to depressive states.
OveractivityInner restlessness, irritability, impatience, emotional instability, difficulty falling and staying asleep.

Heart & circulation

Thyroid hormones influence heart rate, blood pressure and the width of the blood vessels.

UnderactivityDizziness, low blood pressure, slow pulse, physical weakness.
OveractivityPalpitations, fast pulse, raised blood pressure, cardiac arrhythmia.

Muscles

They control protein consumption, energy production and the speed at which the muscles tense and relax.

UnderactivityMuscle weakness, muscle tension, muscle pain.
OveractivityLoss of strength, muscle wasting, muscle tremor.

Skin, hair & nails

The hormones increase the activity of sweat and sebaceous glands and promote the growth of skin, hair and nails.

UnderactivityDry, pale skin, hard brittle nails, dry straw-like hair.
OveractivityItchy, doughy skin, increased sweating, brittle nails, hair loss.

Bones

A healthy thyroid influences the bone-building cells and thus the preservation of bone substance.

Under- & overactivityWhere thyroid function is disturbed, bone health is at risk: loss of bone mass, osteoporosis and, as a consequence, fractures more easily.

Professional basis: patient information "Control of the essential functions of the human body by the thyroid" by Dr. med. univ. Bamdad Heydari.

Send an appointment request

Already a patient? Then you do not need a form – you can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

The thyroid check

Tired, cold, put on weight? That is not a question of character.

One appointment. Ultrasound, laboratory – and findings you understand.

Thyroid complaints are often attributed for years to stress, age or lack of sleep. Yet the thyroid can be assessed quickly and painlessly: a detailed conversation, an ultrasound and the right laboratory values are enough in the vast majority of cases to create clarity.

One woman in fiveis affected by a thyroid dysfunction – women considerably more often than men.Source: Dr. med. univ. Bamdad Heydari, patient information on the thyroid
Hashimotois the most common cause of an underactive thyroid – and readily treatable once it has been identified.Source: medical literature
~20 gramsis what the thyroid weighs. And yet it influences the heart, intestines, muscles, bones, mind and cycle.Source: medical literature

How your thyroid check works

01

Conversation

Your complaints, your history, family predisposition and current medication – without time pressure.

02

Ultrasound

Size, structure, blood flow and nodules of the thyroid – painless, without radiation, in a few minutes.

03

Laboratory & findings

TSH, free thyroid hormones and – where sensible – antibodies. Then the explanation in words you understand.

Good to know

  • A single TSH value is a snapshot – only together with ultrasound and history does it give a picture.
  • The ultrasound of the thyroid is completely painless and works without X-rays.
  • "Borderline" values also need to be put in context – especially where there is a wish for a child, a pregnancy or heart complaints.
  • Bring old findings with you: the course over time often says more than a single value.

No referral, no waiting for months: as a Wahlarzt practice you send your appointment request directly online – around the clock, in two minutes.

Send an appointment request

Already a patient? Then you do not need a form – you can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

Underactive thyroid · Hashimoto's thyroiditis

When the body runs on low flame

With an underactive thyroid the gland produces too few hormones – the entire metabolism slows down. The complaints come on gradually and are therefore often overlooked or dismissed as "just stress".

Hashimoto's thyroiditis: the most common cause of an underactive thyroid. Here the immune system turns against the body's own thyroid. The organ tries to compensate for the underactivity by an overgrowth of the tissue (goitre). Readily assessed, readily adjusted – and easy to manage with regular checks.

The most common complaints

  • Tiredness
  • Poor concentration
  • Coarse, dull hair
  • Constipation
  • Feeling cold easily
  • Hair loss
  • Dry, cool, doughy skin
  • Hoarseness
  • Cycle disorders in women
  • Weight gain
  • Low spirits
  • Muscle weakness & tension

Not every kind of tiredness is the thyroid – but it should be ruled out before you treat the wrong thing for years.

Send an appointment request

Already a patient? Then you do not need a form – you can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

Woman wrapped in a blanket holding a cup – constantly feeling cold as a sign of an underactive thyroid
Always cold, always tiredTypical signs that are far too often attributed to stress
Medino Medical Centre at Auerspergstrasse 6, 1010 Vienna
Medino Medical CentreUltrasound and laboratory in the building – findings in the same appointment

Overactive thyroid · Graves' disease

When the engine keeps revving

With an overactive thyroid the gland produces too many hormones. The body runs continuously: palpitations, inner restlessness, sweating, weight loss despite a good appetite. Many of those affected end up with the cardiologist first – yet the cause sits in the neck.

Graves' disease: an autoimmune disease that leads to an overactive thyroid. Typical signs are palpitations, restlessness, weight loss and sometimes involvement of the eyes. After a careful assessment the treatment is tailored individually and monitored over time.

The most common complaints

  • Restlessness
  • Increased sweating
  • Hair loss
  • Weight loss despite appetite
  • Trembling hands
  • Diarrhoea
  • Fast, irregular pulse
  • Cycle disorders in women
  • Sleeplessness
  • Irritability

Palpitations and weight loss should be assessed promptly – an untreated overactive thyroid puts strain on the heart and bones.

Send an appointment request

Already a patient? Then you do not need a form – you can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

Thyroid & fertility

An unfulfilled wish for a child? The thyroid belongs on the list.

The small organ below the larynx has a great influence on a woman's fertility. With an under- or overactive thyroid there are interactions between thyroid and sex hormones. These disturbances can affect the monthly cycle – and be a reason for involuntary childlessness.

In concrete terms that means: Where there is an unfulfilled wish for a child, the thyroid values should definitely be examined – before more elaborate investigations begin. It is often the quickest and simplest step on the whole path.
  • TSH, free hormones and antibodies – the relevant values in a single laboratory appointment
  • Ultrasound of the thyroid to assess structure and nodules
  • Adjustment and monitoring before and during fertility treatment
  • Close coordination with fertility medicine and gynaecology in the building

Short distances at Medino: fertility medicine, gynaecology and the laboratory are at one address – one set of findings, one plan.

Send an appointment request

Already a patient? Then you do not need a form – you can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

Advice on thyroid and fertility at Medino Vienna

Thyroid & pregnancy

In pregnancy the TSH value counts double

The need for hormones rises automatically in pregnancy – expectant mothers need more iodine. That is why particular attention to a proper diet is needed during this time, in order to cover the increased need for iodine.

Why this matters so much: Even a latent underactive thyroid can impair the development of the unborn child. In addition, where a thyroid disease goes untreated, the risk of miscarriage, stillbirth and premature birth is increased. Dr. Heydari monitors the values closely and adapts the treatment to the changed need – during pregnancy and breastfeeding.

Send an appointment request

Already a patient? Then you do not need a form – you can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

Nodules · goitre · thyroiditis

A lump in the neck is common – and usually harmless. But it should be looked at.

Austria was an iodine-deficient region for a long time, and nodules and enlarged thyroids (goitre) are correspondingly common. The vast majority are benign. What matters is assessing this properly on ultrasound – and not overlooking the few conspicuous findings. Where more than ultrasound and laboratory is needed, Dr. Heydari as a nuclear medicine specialist with clinical experience knows the short route there.

Assessing nodules

Size, structure and blood flow on high-resolution ultrasound – including a classification of the risk.

Goitre

Assessment of an enlarged thyroid, search for the cause and advice on the further strategy.

Thyroid inflammation

Recognising thyroiditis, distinguishing it from an acute infection and accompanying its course.

Scintigraphy & further diagnostics

Where a scintigraphy is needed, Dr. Heydari organises the hospital appointment directly – usually within 48 hours – and then discusses the findings with you personally.

Laboratory in the building

TSH, fT3, fT4 and antibodies – short distances instead of an odyssey of appointments across several addresses.

Follow-up monitoring

Regular checks of nodules and values – so that changes are noticed early.

Send an appointment request

Already a patient? Then you do not need a form – you can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

New · weight & metabolism

Losing weight with medical support – not on your own

Weight and the thyroid are closely connected: an underactive thyroid slows the metabolism, an overactive one drives it. That is why every serious weight reduction begins with an assessment of the control centre. Dr. Heydari then accompanies patients medically – in a structured way, closely monitored and focused on what most programmes overlook.

  • Medical assessment of thyroid, blood sugar, liver and fat metabolism beforehand
  • An individual treatment plan with close support instead of a prescription and goodbye
  • Preserving muscle at the centre: targeted protein intake and strength training – otherwise the yo-yo effect looms
  • Regular laboratory checks along the way – thyroid, blood sugar, liver and lipid values
  • Fixed follow-up appointments instead of self-experiment: course, tolerability, adjustment
Why preserving muscle is decisive: With every weight reduction it is not only fat that is lost, but muscle mass too. If muscle mass falls, the basal metabolic rate falls – and after the end of treatment the body stores fat again more quickly. That is why targeted protein intake and strength training belong in the plan from the start, not only at the end.

Whether medication support is an option for you is decided solely in a personal medical consultation. A separate information page on this will follow shortly.

Send an appointment request

Already a patient? Then you do not need a form – you can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

Second opinion · follow-up monitoring

You have been taking tablets for years – and still do not feel well?

Thyroid treatment is not a one-off adjustment. Stage of life, weight, pregnancy, other medication: many things change the requirement. If complaints persist even though the values "fit", a second, unbiased look is worthwhile.

  • Going through existing findings and laboratory values together – in language you understand
  • Reviewing the current dosage and how it is taken
  • Clarifying whether ultrasound, antibodies or further diagnostics make sense
  • A realistic assessment: what can the thyroid explain – and what rather not?

Please bring all previous findings with you. The course over the years is often more valuable for the assessment than a single current value.

Send an appointment request

Already a patient? Then you do not need a form – you can reach Dr. Heydari's assistant directly on +43 1 226 5567-116 or schilddruese@medino.at.

Your thyroid specialist

Dr. med. univ. Bamdad Heydari – nuclear medicine means understanding function

Nuclear medicine is the field that asks not only how an organ looks, but how it works. With the thyroid that is precisely the decisive question. Dr. Heydari combines this specialist perspective with a style for which his patients have repeatedly given him awards.

Dr. med. univ. Bamdad Heydari
Dr. med. univ. Bamdad Heydari, specialist in nuclear medicine in Vienna
Specialist in nuclear medicine · doctor for general and emergency medicine · further education diploma of the Vienna Medical ChamberGerman · English · Farsi
  • Special interests: thyroid disorders as well as thyroid and pregnancy
  • Professional qualifications: nuclear medicine as well as general and family medicine (ÖÄK)
  • ÖÄK diplomas: DFP further education diploma and emergency doctor diploma
  • Many years of clinical experience, including at Klinik Ottakring
  • Repeatedly awarded the DocFinder Patients’ Choice Award
  • Additional focus: medically supervised weight reduction
Direct to the thyroid practice +43 1 226 5567-116 schilddruese@medino.at For follow-up appointments, questions about findings and prescriptions, please contact Dr. Heydari's personal assistant directly.
Send an appointment requestView the full profile

How it works

From the first click to clarity

1

Send an appointment request

In real time through the Medino scheduler – without a referral, without a telephone queue.

2

Conversation & ultrasound

Your complaints in detail, then the painless ultrasound of the thyroid.

3

Laboratory & classification

TSH, free hormones and – where sensible – antibodies. Then the explanation without jargon.

4

Treatment & monitoring

Medication adjustment if needed – with a clear monitoring plan instead of flying blind.

Why Medino?

A medical centre for the whole family – in the heart of the 1st district, with medicine that takes its time.

Time for your questions

Detailed conversations instead of a five-minute rhythm – especially for complaints nobody took seriously for a long time.

Short distances in the building

Laboratory, internal medicine, gynaecology, fertility, paediatricians – short distances instead of doctor hopping.

Flexible as a Wahlarzt practice

Appointment requests online around the clock, short waiting times, appointments until 8 pm and on Saturdays.

The doctors and therapists at MEDINO are self-employed. The treatment contract is concluded with the treating person in each case.

Location & how to get here

In the heart of Vienna – quick to reach, even in your lunch break

Medino is centrally located in the 1st district by the city hall, Auerspergstrasse 6 – many patients combine the appointment with their journey to work.

Public transport: U2 Rathaus and tram 2 are each a three-minute walk, tram 46 Auerspergstrasse three minutes, U3 Volkstheater seven minutes.

By car: There are several car parks in the immediate vicinity:

MEDINO – Medical Centre for the entire Family
Auerspergstrasse 6, 1010 Vienna
Open the route in Google Maps
Opening hours
Mon 9–18 · Tue–Fri 9–20 · Sat 10–15 · Sun closed
The consulting hours of the individual doctors may differ.
Reception
+43 1 226 5567 · servus@medino.at
Wahlarzt practice · fee note for submission to your health insurance fund

Thyroid practice of Dr. Heydari from 1 October 2026

Direct to the thyroid practice
+43 1 226 5567-116 · schilddruese@medino.at
Already a patient? Then you do not need a form – your enquiry reaches Dr. Heydari's personal assistant directly.

Send an appointment request

Two minutes for your enquiry. And finally knowing where you stand.

Whether it is a first assessment, a nodule, fertility or a second opinion – send your appointment request to Dr. Heydari. The practice starts on 1 October 2026.

Send an appointment request Prefer the phone or e-mail?
+43 1 226 5567-116 · schilddruese@medino.at

Frequently asked questions

Good to know

Which complaints can point to a thyroid disorder?
Possible signs of an underactive thyroid are tiredness, poor concentration, feeling cold, dry skin, hair loss, constipation, weight gain or low spirits. An overactive thyroid is suggested by restlessness, increased sweating, palpitations, weight loss despite appetite and trembling hands, among others. Because many of these complaints are unspecific and occur in very different organ systems, a targeted assessment is worthwhile.
Why does the thyroid cause such different complaints?
Because thyroid hormones act on almost every organ system: they control intestinal motility, affect heart rate and blood pressure, influence muscles, skin, hair and nails, bone formation and the nervous system and thus mood. That is why those affected often end up in other specialties first – and the actual cause goes unrecognised for a long time.
How does a thyroid examination proceed?
As a rule the appointment begins with a detailed conversation (history), followed by an ultrasound examination of the thyroid and the determination of the thyroid values in the laboratory. The findings and – if necessary – the next steps are then discussed.
Does the thyroid ultrasound hurt?
No. The ultrasound is completely painless, takes only a few minutes and works without X-rays. You lie relaxed with your neck slightly extended.
What is Hashimoto's thyroiditis?
Hashimoto's thyroiditis is a chronic, autoimmune inflammation of the thyroid and the most common cause of an underactive thyroid. The thyroid tries to compensate for the underactivity by an overgrowth of the tissue (goitre). It can be readily assessed and adjusted with medication; what matters is the correct diagnosis and regular follow-up checks.
What is Graves' disease?
Graves' disease is an autoimmune disease that leads to an overactive thyroid. Typical signs are palpitations, restlessness, weight loss and sometimes involvement of the eyes. After a careful assessment the treatment is tailored individually and monitored over time.
Can the thyroid be the reason for an unfulfilled wish for a child?
Yes, that is possible. The thyroid has a great influence on a woman's fertility. In the course of an under- or overactive thyroid there are interactions between thyroid and sex hormones; such disturbances can affect the monthly cycle and be a reason for involuntary childlessness. Where there is an unfulfilled wish for a child, the thyroid values should therefore definitely be examined.
Why is the thyroid particularly important in pregnancy?
The need for hormones rises automatically in pregnancy, and expectant mothers need more iodine. Even a latent underactive thyroid can impair the development of the unborn child; where a thyroid disease goes untreated, the risk of miscarriage, stillbirth and premature birth is also increased. That is why the values are monitored closely and the treatment is adapted to the changed need – during breastfeeding too.
I have a nodule on my thyroid – is that dangerous?
Thyroid nodules are common, and the vast majority are benign. What is decisive is a proper assessment on ultrasound: size, structure and blood flow give indications as to whether a nodule can be observed or should be investigated further. Where needed, further diagnostics are coordinated.
Does the thyroid have anything to do with my weight?
Often yes. An underactive thyroid slows the metabolism and can lead to weight gain, an overactive one speeds it up and often leads to weight loss despite a good appetite. An assessment of the thyroid is therefore sensible before any weight reduction. Beyond that, Dr. Heydari accompanies patients through a medically supervised weight reduction – with particular attention to preserving muscle mass.
My values are "normal", but I feel bad. Is an appointment worthwhile?
Often yes. A single laboratory value is a snapshot; only together with ultrasound, history and the course over time does a picture emerge. Sometimes it turns out that the dosage needs adjusting – sometimes that the cause lies elsewhere. That too is valuable information.
What should I bring to the first appointment?
Please bring photo identification and your e-card as well as – if you have them – previous findings, current thyroid values (laboratory), a list of medication and earlier findings, for example ultrasound images.
From when can I get an appointment with Dr. Heydari?
Dr. Heydari will hold consultations from 1 October 2026 at the Medino Medical Centre at Auerspergstrasse 6, 1010 Vienna. You can send your appointment request now via the online form on this page – you will receive a proposed date. You can reach the thyroid practice by telephone directly on +43 1 226 5567-116, by e-mail at schilddruese@medino.at. Both reach Dr. Heydari's personal assistant directly.
I am already a patient – do I have to fill in the form?
No. The online form is intended for first appointments. If you are already being treated by Dr. Heydari, please contact his personal assistant directly for follow-up appointments, questions about findings or prescriptions: by telephone on +43 1 226 5567-116 or by e-mail at schilddruese@medino.at.
Do you also carry out a scintigraphy?
Where a scintigraphy is needed, Dr. Heydari organises the hospital appointment directly – usually within 48 hours – and then discusses the findings with you personally.
Do I need a referral?
No. As a Wahlarzt practice no referral is required – you simply send an appointment request directly.
What does Wahlarzt mean – and do I get the costs back?
Medino is a Wahlarzt practice, so there is no direct contract with the health insurance funds. You pay the fee yourself first and can then submit the fee note to your health insurance fund. Depending on the service, around 80 per cent of the corresponding public tariff is usually reimbursed; supplementary insurance often covers more.
Which languages does Dr. Heydari speak?
Dr. Heydari speaks German, English and Farsi.

Medically reviewed and approved by Dr. med. univ. Bamdad Heydari · 11 August 2026