Definition: Anastaseus is a Greek term that refers to a disease characterized by rapid, frequent blood loss. Detailed Definition: Anastaseus was a condition in which an increased production of red blood cells would result in rapid bleeding from the digestive tract. The exact cause remains uncertain, but it has been linked to poor diet, stress, and certain medications, such as antibiotics or chemotherapy drugs. Symptoms include excessive bleeding from the mouth, nose, and anus, often accompanied by fever, chills, or fatigue. Asthma symptoms are common. In some cases, anastaseus can cause organ failure or death due to massive bleeding and other complications. Treatment may involve blood transfusions, surgery, and possibly antibiotics if the condition is severe enough.