An abnormal hemoglobin 108 is hemoglobinopenia. The normal value of hemoglobin value for newborns is 170-200g/L, the normal value for women is 110-150g/L, while the normal value for men is 120-160g/L. The common causes of decreased hemoglobin are iron deficiency anemia, chronic infection, chemotherapy, etc. 1. Iron deficiency anemia: due to insufficient iron intake or excessive loss, resulting in insufficient hemoglobin synthesis and lower hemoglobin content in the blood, which should be supplemented with iron in time. 2. Chronic infection: Long-term chronic infection, such as cancer, intestinal infection, pernicious anemia, renal failure, etc., will lead to the decrease of hemoglobin content in blood. 3. Chemotherapy: Cancer patients take chemotherapy to alleviate their condition, and at the same time, there will be side effects of chemotherapy, and hemoglobin decrease is one of the side effects. Chemotherapy drugs will inhibit bone marrow hematopoiesis at the same time of killing cancer cells. There may be other reasons for hemoglobin decrease, such as gastrointestinal bleeding, malnutrition, etc. It is recommended to go to the hospital in time for medical consultation, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy.