The cure rate of lentigo varies according to different treatment options. The cure rate of tyrosine kinase inhibitor treatment is about 25%, and bone marrow transplantation can reach about 80%. 1. Tyrosine kinase inhibitor treatment: this is the most commonly used drugs for the treatment of lentigo, such as dasatinib, imatinib, etc. 50% of the patients can achieve deep remission after treatment, and the five-year overall survival rate of the patients is more than 90%, but at present, it is still not considered that tyrosine kinase inhibitors can completely cure lentigo. 2. Bone marrow transplantation: If the patient is <50 years old and has certain economic conditions, bone marrow transplantation can be chosen, with better therapeutic effect, and its cure rate can reach about 80%, but there will still be complications such as infection and bleeding, and there is the possibility of transplantation failure. Slow-grain leukemia, need to actively go to the hospital for diagnosis and treatment, follow the doctor's instructions for reasonable treatment.