Calcium disorders refer to imbalances in the levels of calcium in the body, which can lead to various health issues. These disorders can manifest as either hypercalcemia, where there is too much calcium in the blood, or hypocalcemia, where there is too little. Both conditions can affect muscle function, nerve signaling, and bone health. The causes of calcium disorders can vary widely, including parathyroid gland dysfunction, certain medications, and underlying health conditions like kidney disease or vitamin D deficiency. Diagnosis typically involves blood tests to measure calcium levels, and treatment may include dietary changes, supplements, or medications to restore balance.