Hemoglobin 67g/L is moderate anemia and is severe. 1. Anemia is divided into 4 levels according to the degree of hemoglobin: >90g/L is called mild anemia, 60-90g/L is called moderate anemia, 30-59g/L is called severe anemia, and less than 30g/L is called very severe anemia. 2. Generally less than 60g/L requires immediate blood transfusion. Hemoglobin is low 67g/L, belongs to the more serious anemia, the patient will appear obvious symptoms of anemia, fatigue, shortness of breath, will be on the human body’s various systems, various organs to cause obvious effects. Need to go to the hospital for timely treatment. If anemia is found in life, the cause should be identified as soon as possible, and systematic diagnosis and treatment should be carried out to correct the anemia as soon as possible, so as not to cause serious consequences.