Learn what side effects may occur during chemotherapy? How can I prevent these side effects? Knowing these contents and being prepared for chemotherapy can help you avoid and reduce the discomfort caused by chemotherapy. 1, nausea and vomiting: the most common side effects of chemotherapy, before chemotherapy, a small number of meals, do not eat a lot of food, to avoid excessive swelling of the stomach. Avoid greasy, too sweet and spicy food, you can drink some cool drinks. If severe nausea and vomiting occurs, you should fast temporarily, give intravenous supplemental calories and apply antiemetic drugs. 2.Constipation, diarrhea: Diarrhea is mostly due to the destruction of intestinal mucosal cells by drugs. You should eat a light diet, ask the doctor to prescribe antidiarrheal agents, and when diarrhea is severe, intravenous rehydration is needed to replenish water. Constipation is a common adverse reaction to analgesic drugs and chemotherapeutic antiemetic drugs, should consume more water, vegetables, fruits, and the use of laxatives. 3, hair loss: chemical drugs are more likely to destroy the faster division of cells, such as hair. Hair will continue to grow after chemotherapy is stopped. During chemotherapy, you can cut your hair short, avoid excessive washing and blow-drying or combing, and wear a wig to improve your appearance. 4, leukopenia, anemia and bleeding of skin and mucous membranes: chemotherapy drugs inhibit bone marrow hematopoiesis caused. Leukocyte decline began after chemotherapy 5-7 days, should begin to monitor the blood routine, to about 10 days to reach the lowest point, maintained at a low level for 2-3 days, that is, began to rebound, over a period of 5-7 days to return to normal. Oral medication can be taken, or subcutaneous injection of granulocyte colony-stimulating factor to elevate white blood cells. Attention should be paid to personal hygiene, avoid going to crowded public places to reduce cross-infection. When platelet drop, pay attention to whether there are skin bleeding points, gum bleeding and nosebleed, use soft bristle toothbrush to reduce the stimulation of gums to prevent bleeding of oral mucosa, avoid bumping, if necessary, platelet transfusion treatment. 5.Injection site tissue and skin necrosis: Intravenous infusion of chemotherapeutic drugs leaking out of the blood vessels, can cause local tissue and skin necrosis. If this happens, local closed treatment or magnesium sulfate wet compresses can be used. Infusion should be avoided during infusion of excessive activity at the infusion site, retention and use of PICC line or deep venous catheter drip chemotherapeutic drugs can be avoided drug extravasation. 6, fatigue: fatigue manifested as weakness, fatigue, heavy or slow feeling, often appear in the chemotherapy period, some in the end of chemotherapy lasts several weeks or months. Chemotherapy-induced malaise can appear suddenly or gradually worsen, and can be mild or severe. Causes of fatigue include: medication, changes in appetite, lack of activity, overexertion, sleep disorders, pain, anemia, and infection. The treatment of fatigue includes: rest, relaxation, moderate activity, sleep, small and frequent meals, moderate hydration, effective analgesia, and timely treatment of anemia and infection.