Abnormal dryness, also known as xerosis (7 letters), is a condition characterized by an excessive loss of water from the skin. It can be caused by environmental factors such as low humidity, frequent bathing, and use of harsh soaps, as well as certain medical conditions. Symptoms of abnormal dryness include itching, flaking, and cracking of the skin. Treatment typically involves moisturizing the skin and avoiding activities that may worsen the condition.