A possible cause of a lump on the tongue is due to misaligned teeth, excessively sharp tips, or bad restorations in the mouth. This can cause frequent biting and scraping of the tongue mucosa, resulting in breakage or blockage of the tiny mucus gland ducts under the tongue mucosa and storage or leakage of mucus, resulting in a mucus gland cyst on the tongue, which cannot be absorbed and eliminated by itself and needs to be surgically removed. If the tongue root is long and lumpy, the lumps are soft in texture without painful symptoms and evenly distributed on both sides of the tongue root, these fleshy lumps are normal physiological structures called contour papillae are taste sensory organs. These bumps are normal physiological structures called contour papillae, which are taste receptors. In case of vitamin and trace element deficiency in the body, contour papillae become inflamed when they receive viral or fungal infections, causing swelling, pain and hardness. In addition, if herpetic cheilitis or inflammation of the tonsils occurs, the lymphatic follicles at the base of the tongue can become enlarged and bumps can appear.