Look at thyroid: There can be hormonal reasons why the outer third of an eyebrow hair has falling out. If it's the entire eyebrow, then you need to go to your PCP and investigate this further.
Answered 9/9/2016
2.8k views
2 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question