Hemoglobin 86 is a moderate anemia with a hemoglobin value below the normal range. The severity of the condition is highly dependent on the cause of the anemia, and common causes include iron deficiency anemia, megaloblastic anemia, and acute leukemia. The normal range of hemoglobin value is 120~160g/L for adult male and 110~150g/L for adult female. When the hemoglobin value is 60~90g/L, it belongs to moderate anemia. 1. Simple iron deficiency anemia is relatively not serious as the hemoglobin value will return to normal soon after iron supplementation treatment is given in time. 2. If the hemoglobin value decreases due to megaloblastic anemia, the condition can be cured without serious consequences after folic acid and vitamin B12 are given in a timely and standardized manner. 3. If the decrease in hemoglobin value is caused by acute leukemia, the condition is relatively more serious. If not actively treated, the anemia symptoms will be further aggravated, and infections, bleeding and other symptoms will easily occur, leading to aggravation of the condition, and even life-threatening. If you find that your hemoglobin value is lower than normal, you should actively find out the cause and standardize the treatment to avoid delaying your condition.