Hemoglobin 85 is the hemoglobin concentration of 85g / L, the concentration is not normal, in the clinical range of moderate anemia. Hemoglobin is an important protein in human red blood cells, with the physiological function of transporting oxygen, the normal hemoglobin concentration in adult males is 120~165g/L, and in adult females is 110~150g/L, so the hemoglobin concentration of 85g/L is not normal. Patients with hemoglobin concentration lower than the above normal values are clinically known as anemia, while hemoglobin concentration between 60~89g/L belongs to the category of moderate anemia. Anemia is a syndrome caused by a decrease in the number of red blood cells in the peripheral blood, resulting in the inability to provide component oxygen to tissues and organs in various parts of the body. The cause of the disease is complex, and it is usually due to a decrease in the production of red blood cells in the body of the patient, and the destruction of red blood cells and other factors. Patients with moderate anemia often experience pale skin and mucous membranes, dizziness, headache, fatigue, palpitations, shortness of breath and other symptoms, and depending on the actual cause of the disease, keratitis, numbness of the limbs, yellowing of the skin and other symptoms. It is recommended that patients with hemoglobin 85g/L should seek medical treatment as soon as possible to avoid delaying their condition.