Small granules of flesh in the middle of the tongue may be caused by trauma, papillitis or papilloma of the tongue. 1. Trauma: If you accidentally bite your tongue, or if your tongue suffers from other types of mechanical injuries, swelling will occur, manifesting itself in the form of small meat grains growing on your tongue. 2. Tongue papillitis: usually caused by poor oral hygiene and localized infection of the tongue, which is mainly manifested as redness, swelling, congestion and pain in the affected area. 3. Tongue papilloma: it can be caused by papilloma virus infection, foreign body stimulation and tongue cancer, etc. It manifests as tongue pain and protruding lumps, which can be removed by surgery. If there is a small lump in the middle of the tongue, it is recommended to go to the hospital in time, usually drink more water and pay attention to the intake of nutrients.