The raised bumps at the bottom of the tongue are considered to be diseases such as cysts of the sublingual gland, polypoid hyperplasia, and papilloma of the tongue. 1. Sublingual gland cysts, patients with sublingual gland cysts due to increased secretions from the sublingual gland, may produce localized raised bumps on the tongue. 2. Polypoid hyperplasia, due to abnormal tissue proliferation on the surface of the mucous membrane, the appearance of superfluous organisms, may produce the symptoms of raised bumps on the bottom of the tongue. 3. Papilloma of the tongue, if the patient has a papilloma of the tongue, the tumor gradually increase in size may compress the tongue, so this symptom will appear. If there are obvious bumps, accompanied by pain and other symptoms, it is recommended to consult a doctor in time for examination and treatment.