Both low white blood cells and low hemoglobin can have serious consequences; there is no such thing as which low is more serious. Low white blood cells and low hemoglobin are common in the following diseases: 1. Acute and severe aplastic anemia: This type of disease will cause the patient’s hematopoietic function to be affected, which will further lead to a decrease in white blood cells and hemoglobin. 2. Iron deficiency anemia and megaloblastic anemia: both of them will lead to the reduction of hemoglobin, white blood cells and even platelets. 3. Acute leukemia: there will be a decrease in white blood cells and hemoglobin, which will further lead to anemia. When malignant tumors are treated with radiotherapy, bone marrow transplantation is produced, which leads to a decrease in white blood cells and platelets. When white blood cells are lowered, the body’s immunity will be reduced, and at the same time, the probability of the body suffering from infectious diseases will be raised, and the body will also suffer from a series of uncomfortable symptoms, such as dizziness, fatigue, loss of appetite, and weakness of the limbs. Low hemoglobin is seen in all kinds of anemia and blood loss. Oxygen-carrying capacity decreases, the organization will appear obvious hypoxia manifestation, light dizziness, fatigue, panic, etc., and heavy can appear consciousness disorder and brain, heart, liver, kidney and other implementation of organ damage. Low platelets will cause a decline in coagulation function, there will also be cold limbs, weakness, and in severe cases, even bleeding of internal organs of the body, seriously affecting the normal life of the patient. When the white blood cells and platelets decrease, it is recommended to consult a doctor in time to make a clear diagnosis and then carry out targeted treatment.