Many reasons: Girls who haven't had their first period by the age of 16 should visit their doctor to rule out hormonal problems. It could be something as simple as not having enough body fat due to excessive exercise or it could be a sign of a chromosomal disorder.
Answered 9/22/2016
5.3k views
A doctor has provided 1 answer
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