Low hemoglobin level should pay attention to identify the cause of the disease and active treatment, more intake of iron-containing and high-protein food, and daily attention to rest. 1. Pay attention to identify the cause of the disease and actively treat it: conduct a comprehensive physical examination to identify the cause of low hemoglobin, and if necessary, give blood transfusion or red blood cells to correct the anemia, and actively treat the primary disease at the same time. 2. Pay attention to more intake of iron-containing, high-protein food: iron deficiency anemia is the most common cause of low hemoglobin, it is recommended to consume more food containing iron, vitamin B12, protein, and iron supplements in order to correct low hemoglobin. 3. Pay attention to rest: people with low hemoglobin have poor body resistance, so it is recommended to do a good job of personal protection, living and relaxing. Daily diet should be scientifically coordinated and nutritionally balanced. During the treatment period, pay attention to regular review, monitor the hemoglobin level and adjust the treatment plan in time.