Low thyroid: Having low thyroid hormone levels (hypothyroid) can cause hair to become thin and brittle. It would be reasonable to have your thyroid hormone leves checked along with a tsh.
Answered 4/1/2019
5.4k views
3 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
7 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question