Poonam Goel Poonam Goel Asked 10 months ago

Can synthroid cause hair loss?

I was diagnosed with hypothyroidism a few months ago and started taking Synthroid. Since then, I've noticed my hair seems to be thinning more than before. Is it possible that Synthroid can cause hair loss?

8

8 answers

Manish Chawla Manish Chawla Joined Jun 2026 4 months ago
Most liked

Don't fall for internet advertisements selling expensive hair oils or biotin gummies claiming to cure thyroid hair loss. Hair shedding is a known side effect of adjusting thyroid hormones, and only your doctor can tell if your dose is correct. Get a proper blood test done to verify.

Preeti Saxena Preeti Saxena Joined Jun 2026 4 months ago

Yes, it can, especially in the first few months of starting the medication as your hormone levels shift. I had severe shedding and ignored it, but it turned out my dose was actually too high. Please consult your doctor to check your thyroid levels before changing anything.

Rohan Bhatia Rohan Bhatia Joined Jan 2026 9 months ago

Listen, don't panic about the hair fall right now. When you start Synthroid, your body takes time to adjust to the new hormone levels, which can temporarily trigger shedding. It usually stabilizes in a few months, so just hang in there and talk to your physician if it doesn't stop.

Powered by

Consult a dermatologist

Sneha Murthy Sneha Murthy Joined Jan 2026 9 months ago

I started taking this medication three weeks ago and my hair is coming out in clumps in the shower. I am feeling so stressed out and scared of going bald. Has anyone else experienced this exact issue when starting out?

Vijay Gaikwad Vijay Gaikwad Joined Apr 2026 6 months ago

At this age, between stress, graying, and now thyroid pills, my hair has decided to retire early. Yes, Synthroid can cause temporary shedding while your body gets used to it. Just keep your doctor in the loop and try to enjoy the lighter hair while it lasts!

Ananya Sen Ananya Sen Joined May 2026 5 months ago

When I noticed hair thinning, I went to my endocrinologist at Apollo Hospital. She clearly explained that both underactive thyroid and the medication itself during the initial phase can cause hair loss. She adjusted my dosage slightly and advised me not to self-medicate.

Related reads

All articles
Gopal Krishnan Gopal Krishnan Joined May 2026 5 months ago

I have been on thyroid medication for ten years and faced this initial shedding too. The key is patience; once your TSH levels stabilize in the normal range, the hair fall stops and it actually grows back healthier. Keep taking your tablet regularly on an empty stomach and don't skip doses.

Pooja Hegde Pooja Hegde Joined Jun 2026 4 months ago

Yes, it is a very common temporary reaction, but checking your TSH levels after 6-8 weeks is the best way to be sure.

Evidence-based health, reviewed by clinicians. Free, weekly.