Variety of reasons: Many possibile reasons including a bone spur, callous, fungus, past injury to nail. You should visit a podiatrist.
Answered 5/14/2021
5.4k views
6 doctors weighed in across 2 answers
4 doctors weighed in across 2 answers
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