Hypercalcemia is a medical condition characterized by an abnormally high level of calcium in the blood. Calcium is essential for many bodily functions, including bone health, muscle contraction, and nerve signaling. However, when calcium levels rise too high, it can lead to various symptoms such as fatigue, nausea, and confusion. Common causes of hypercalcemia include overactive parathyroid glands, certain cancers, and excessive intake of vitamin D. Treatment for hypercalcemia often focuses on addressing the underlying cause. For instance, if the condition is due to an issue with the parathyroid glands, surgery may be necessary. In other cases, medications or hydration may help lower calcium levels. It's important to monitor and manage hypercalcemia to prevent complications like kidney stones or weakened bones.