Calcium is a component of the body. It plays an important role in the body's operation, and is present in bones and teeth. When found in tissues or organs where it is not normally present, it is called calcification. It may be disturbing depending on its size and location, but often calcification is benign. Calcification may appear in cases of hypercalcemia, in the development of certain tumors, and following events of necrosis. Calcifications may be responsible for pain and deformities.