Hard to say: Your description does not provide much to go on. Size, shape, texture. color, thickness, etc. all are features that might clarify the cause. Without these it would require a visual inspection & maybe some tests to know.
Answered 3/11/2018
368 views
4 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