Calcification refers to the accumulation of calcium salts in some local tissues of the body and hardens, usually divided into two different cases. 1. Calcification of soft tissues of the body will affect the movement of local joints, restrict the development of joints, and cause pain to patients. 2. Calcification caused by tumors in the body, when tumors develop to a certain stage, will also occur. It is caused by the hardening of calcium salt deposits in the tumor tissue, which means that the tumor may further develop and spread, so it should be treated in time to prevent more serious situation.