Whether chemotherapy is possible depends on the patient’s disease state and cannot be generalized. Generally speaking, if other conditions of the body allow, platelets 75×10^9/L can be chemotherapy, but may need to reduce the dose of chemotherapy drugs or adjust the chemotherapy program. Chemotherapy is a method of anti-tumor treatment, but chemotherapeutic drugs such as carboplatin, while killing cancer cells, will also play a role in killing normal cells, the most common is to lead to myelosuppressive reaction, which leads to a decline in white blood cells, platelets, anemia and so on. Whether chemotherapy can be carried out also depends on the state of the organism. A drop in platelets to 75 x 10^9/L alone may allow chemotherapy to continue, but it may cause platelets to drop further and needs to be watched closely. When platelets fall, it may lead to the occurrence of bleeding, which can be treated by adjusting the dose of chemotherapeutic drugs or changing the chemotherapy regimen, hemostatic drug infusion (aminoglycolic acid), and single-collected platelet transfusion. Platelets 75 × 10^9 / L, should be promptly to the regular hospital, the doctor according to the specific condition to determine whether the chemotherapy or give appropriate drug treatment.