The changes after one chemotherapy treatment for ovarian cancer may include hair loss, digestive system symptoms, nervous system symptoms, bone marrow suppression reaction and so on. 1. Hair loss: scalp cells reproduce vigorously and are easily damaged by chemotherapeutic drugs. Paclitaxel, a commonly used chemotherapeutic drug for ovarian cancer chemotherapy, has the main side effect of hair loss. However, the symptoms will improve after chemotherapy is stopped, so there is no need to worry. 2. Digestive system symptoms: digestive system symptoms are the most important ones, including nausea, vomiting and so on. 3. Nervous system symptoms: chemotherapy can lead to peripheral neuritis and other clinical manifestations such as generalized pain, numbness in the endings of the hands and feet, fatigue, weakness, and sensory abnormalities. 4. Myelosuppressive reaction: most patients will experience a decrease in blood counts such as white blood cells, red blood cells, hemoglobin, granulocytes and so on. Fever, bleeding and other clinical manifestations will occur. Some patients will also have liver and kidney function damage and other changes. Please strictly follow the doctor’s instructions, do not self-medicate.