A cold sore usually occurs due to an infection with HSV-1. It can occasionally form on the tongue. Learn about the causes, symptoms, and treatment options here.

Herpes simplex virus type 1 (HSV-1) is a viral infection that can cause cold sores around the mouth. Some people may develop sores or blisters on the tongue. Mouth symptoms can last 2 to 3 weeks .

The herpes simplex virus comes in two forms: HSV-1 and HSV-2, causing oral herpes and genital herpes. ... Some people also get cold sores inside, on the roof of the mouth, the tongue, and gums.

Tongue herpes primarily occurs due to HSV-1, but you could get HSV-2 from having unprotected sexual intercourse. Symptoms will begin as a painful or itchy area that may be red and may swell.

One study showed the herpes simplex virus (HSV) type 1 virus in a test of transient lingual papillitis, ... Herpes simplex: Herpes (HSV) lesions on the tongue may resemble lie bumps; ...

Dermatologists explain what causes warts on the tongue ... Cold sores are a possible symptom of herpes simplex virus type 1 (HSV-1) or herpes simplex virus type 2 (HSV-2), ...

Sores on or Near Your Mouth. Oral herpes. Many conditions can cause sores on or near your mouth, whether or not you have HIV. But if you have HIV and sores on your lips or inside your mouth, there ...