A hemoglobin of 78 is considered moderate anemia, which is more severe. The severity of anemia is judged according to the hemoglobin concentration, and a hemoglobin of 78 g/L is considered moderate anemia. Anemia is mainly caused by iron deficiency, leukemia, postpartum, post-surgery and massive blood loss. Patients may show dizziness, headache, pallor, easy tiredness, fatigue, indigestion, bloating, palpitation, shortness of breath after activity, blurred eyes and tinnitus. If anemia is left untreated for a long time, it can also cause damage to various organs such as heart failure, and even endanger the patient’s life. Therefore, moderate anemia is still serious and should be taken seriously. Regardless of the cause of moderate anemia, it is recommended to go to the hospital as soon as possible, under the guidance of the doctor to carry out regular treatment, so as not to cause other complications.