Hemolytic jaundice is caused by the destruction of a large number of red blood cells in the blood when hemolysis occurs in various hemolytic diseases, which exceeds the metabolic capacity of the liver. It is mainly characterized by yellow staining of the skin, mucous membranes and sclera, and anemia, and has not only “three main features”.1. Yellow staining of the skin, mucous membranes and sclera: It is caused by the impaired metabolism of bile pigments, resulting in an increased concentration of bilirubin in the blood, which penetrates into the tissues, causing the skin, sclera, mucous membranes and other tissues to be dyed yellow. Hemolytic jaundice has a light lemon color of the skin mucosa, not accompanied by itching of the skin; 2. Anemia: symptoms such as headache, dizziness, atrophy and syncope may occur; symptoms such as accelerated and deepened respiration in mild anemia and shortness of breath and even telangiectatic breathing in severe anemia may occur. Patients may also have accelerated heart rate, palpitations, indigestion, abdominal distention, decreased appetite and other symptoms; 3. Other: patients with acute hemolytic jaundice often have short-term massive hemolysis, which can cause severe back and limb pain with headache, vomiting and chills. As the disease progresses, hemoglobinuria may appear, manifested as soy sauce or tea-colored urine, as well as high fever, pallor and other symptoms, and in severe cases, diffuse intravascular coagulation, acute renal failure and shock may occur. Chronic hemolytic anemia has a slow onset, with splenomegaly as the main manifestation.