A piece of flesh growing in the cavity of the tooth may be caused by pulpal polyps, gingival hyperplasia, etc. It does not necessarily get bigger and bigger, and it needs to be determined according to the situation. If the body’s resistance is strong or the inflammation is under control, the piece of flesh may shrink or stop swelling. If the inflammation is strong, it may continue to swell. 1. Pulp polyps: tooth decay can cause pulpitis, chronic inflammation, may stimulate the granulation tissue polyps, pulp polyps if not treated, inflammation and other substances have been stimulated, is likely to cause it to continue to increase. 2. Gingival hyperplasia: Gingival hyperplasia may be caused by factors such as inflammatory stimulation due to tooth decay, which may lead to a cavity with a piece of meat, and the hyperplasia may gradually become larger. The cavity grows a piece of meat, need to go to the hospital in time to check, there may be other reasons, need to be on the doctor’s advice for treatment. If there is infection, actively anti-infection treatment, if the polyp is too large to affect the function may need surgical treatment.