The bumps at the back of the tongue are usually the tongue papillae as well as the tongue tonsils, which are the normal tissues of the tongue. If the patient himself has pharyngitis or cold, it is likely to cause this part of the tissue to proliferate, become larger or even inflammation, but it is not a manifestation of tumor. If a tumor appears at the base of the tongue, in most cases, it will affect the patient’s chewing and the normal activities of the tongue, and the swelling is usually single and not multiple. Swellings at the base of the tongue are usually harder to detect. If a patient finds a suspicious tumor, he or she may consider a prompt visit to the maxillofacial surgery department so that the doctor can make a diagnosis. If it is a variable sized, papillary protrusion of the tongue, patients need not worry too much as it is a normal manifestation.