Medically Reviewed by Dr Ali, FRCP (Edinburgh), FRCP (London), MBBS, MRCS, LRCP, DCH, DRCOG, MRCGP
If you’re losing more hair than usual and have a thyroid condition, you’re not alone. Hyperthyroidism is a common cause of hair loss, and with proper treatment, your hair can grow back.
This article explains:
- What hyperthyroidism is
- Why it causes hair loss
- Common symptoms
- Treatment tips for hair regrowth
What Is Hyperthyroidism?
Hyperthyroidism is a condition where your thyroid gland makes too much thyroid hormone. This hormone controls your body’s metabolism, or how fast your body works.
Common symptoms of hyperthyroidism:
- Rapid weight loss
- Fast heartbeat
- Anxiety or restlessness
- Trouble sleeping
- Excessive hair shedding or thinning
Does Hyperthyroidism Cause Hair Loss?
When your thyroid is overactive, it throws off your body’s balance. This affects your hair growth cycle, pushing hair into the shedding phase too early — a condition called telogen effluvium.
Also, hyperthyroidism can lower levels of important nutrients like:
- Iron
- Zinc
- Biotin
These nutrients help keep your hair strong and healthy.
Thyroid Hair Loss Symptoms to Look Out For
Hair loss from thyroid problems usually shows up as:
- Thinning across the scalp (not in patches)
- Dry, brittle, or thinning hair
- Thinning of the outer third of your eyebrows
- Tiredness, weight loss, or irregular periods
If you’re noticing these signs, ask your doctor for a thyroid function test (TSH, T3, T4 levels).
How to Treat Hair Loss from Hyperthyroidism
Get a Medical Diagnosis
A blood test can confirm if your thyroid is overactive. Treatments may include:
- Antithyroid medications (like Methimazole)
- Radioactive iodine
- Surgery (in some cases)
Support Hair Regrowth With Nutrition
Eat foods high in:
- Iron: spinach, red meat, legumes
- Zinc: seafood, nuts, seeds
- Biotin: eggs, sweet potatoes, bananas
Ask your doctor about supplements if needed.
Use Gentle Hair Care Products
- Avoid heat tools
- Skip tight hairstyles
- Use sulfate-free shampoo and conditioners
Be Patient and Consistent
Hair regrowth often begins 3–6 months after thyroid levels return to normal. Everyone’s recovery time is different.
Will My Hair Grow Back After Hyperthyroidism?
Yes — once your thyroid hormones are balanced and you’re eating well, most people see hair start to grow again. Full regrowth may take several months.
Final Thoughts
If you have hyperthyroidism-related hair loss, don’t panic — it’s usually temporary. Treating the root cause (your thyroid) is the key to getting your hair and your energy back.
📞 Call us today at Nottingham 0115 897 6696 or London 0203 500 4604 or Schedule a Consultation Online to take the first step toward thicker, healthier hair!
