What causes white bumps inside the throat?

One of the most common causes of white lumps appearing inside the throat is tonsillitis. Other causes may include candidiasis, herpes, oral thrush, mononucleosis, strep throat and leukoplakia.

White, pus-filled lumps on the tonsils and the back of the throat are a common occurrence in tonsillitis. According to WebMD, to determine the cause of the white bumps, a doctor may perform a throat swab culture or a strep test. The doctor may prescribe a course of antibiotics to cure a bacterial infection. The symptoms usually get better in 3 or 4 days after the start of the treatment. Other common symptoms of tonsillitis include pain in the ears, coughing and headaches.