It is possible to recover from 4 degrees of myelosuppression after chemotherapy. Myelosuppression is a common side effect after chemotherapy and refers to a decrease in the activity of hematopoietic stem cells and various precursor cells in the bone marrow. Since chemotherapy targets rapidly dividing cells, and the red and white blood cells in the blood originate from the hematopoietic stem cells in the bone marrow, it is easy for the treatment process to inhibit normal bone marrow cells, resulting in a decrease in the number of blood cells, white blood cells, and platelets. Generally speaking, according to the changes in the amount of blood cell components after chemotherapy, bone marrow suppression can be categorized into 4 degrees, in which the 4th degree of bone marrow suppression refers to the situation in which the white blood cells are less than 1,000/mL, the hemoglobin is less than 65g/L, and the platelets are less than 2.5/mL. Although this kind of myelosuppression is more serious, but if the patient can actively cooperate with the doctor’s treatment, then there is still a chance to recover. During the treatment, patients should strictly follow the doctor’s arrangement, take routine blood tests on time, pay attention to rest, and maintain a healthy diet, mainly focusing on light, easy-to-digest food, so as to promote the recovery of the disease.