Hydroxyurea is generally used in the treatment of chronic leukemia, myeloproliferative disorders, or cancer. There is no accurate statement on how long you can live on long-term hydroxyurea. Hydroxyurea is a kind of chemotherapy drug used in clinical practice, if taken for a long time, the side effects are large, which may lead to the reduction of red blood cells in the patient’s body, resulting in the phenomenon of anemia, and in serious cases, it will also lead to the patient’s liver, kidney damage, due to multi-organ damage may lead to the patient’s death. There is no way to determine the survival time. The effectiveness of oral hydroxyurea in controlling the primary disease also affects the survival of the patient, and if the treatment is not effective, the patient’s life may be jeopardized in a short period of time due to the progression of the disease. In addition, oral hydroxyurea may cause low white blood cells and increase the risk of infection. Hydroxyurea can also lower platelets. If you need to take hydroxyurea for a long period of time, it is recommended that you follow your doctor’s instructions to regulate the use of hydroxyurea, and it is not recommended to increase the dosage or decrease it on your own.