Bumps under the tongue can be harmless, or they can occur due to an underlying condition. Potential causes include canker sores, cysts, or human papillomavirus (HPV). Many causes of bumps under the ...
Medically reviewed by Edmund Khoo, DDSMedically reviewed by Edmund Khoo, DDS A ranula is a cyst under the tongue. It happens when a saliva gland leaks saliva into the surrounding tissue, forming a ...