The side effects after chemotherapy include the following: i. The most common gastrointestinal reactions, such as nausea, vomiting, abdominal pain, diarrhea, and constipation. Second, hematological toxicity can cause a decrease in the number of white blood cells, red blood cells, and platelets. Third, hepatic impairment can cause an increase in glutamic acid and glutamic oxalacetic transaminase. Renal impairment can cause an increase in urea nitrogen, creatinine and other values. V. Neurotoxicity, which can cause peripheral neuropathy and central neuropathy. Cardiotoxicity, which can cause damage to cardiomyocytes and damage to the cardiac conduction system. Hair loss, for example, more than 80% of paclitaxel drugs can cause hair loss in patients after application, but such hair loss can be restored after discontinuing the drug.