How do i know if i have it could be oral cancer?

Consult with dentist: Dentist can only do the preliminary diagnosis with the velscope light unit. With the scope, irregular tissue with capillary network can be detected. However, definitive diagnosis must be done with biopsy. Brush biopsy also must be followed through with the tissue biopsy. Check with your dentist.

Exam: Exam and biopsy of suspicious areas by oral surgeon or ENT doc.