Firm and purple: If you bite your lip/cheek and traumatize inside your mouth, but not enough to break open the suface of skin(mucosa) then you may develop a firm purple-colored bump. Over time the "blood-blister" will pop and drain and should heal quickly. If it does not resolve within 7-10 days, have it checked out.
Answered 3/29/2019
5.7k views
12 doctors weighed in across 2 answers
6 doctors weighed in across 2 answers
6 doctors weighed in across 2 answers
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