Hypophosphatemia is a condition characterized by an abnormally low level of phosphorus in the blood. There are several synonyms for the word, including phosphorus deficiency, hypophosphatemic, and low phosphorus levels. Other related terms include phosphorus depletion, phosphate depletion, and poor phosphorus absorption. Hypophosphatemia can be caused by various factors such as malnutrition, certain medications, and medical conditions like chronic kidney disease. Symptoms of hypophosphatemia include muscle weakness, bone pain, and respiratory failure. Treatment includes correcting the underlying causative factor, replenishing the phosphorus levels, and managing any associated symptoms. It is essential to seek medical attention for suspected hypophosphatemia as it can be a life-threatening condition.