Finger stiffness after chemotherapy for stomach cancer is mainly considered peripheral nerve damage caused by chemotherapy drugs. Chemotherapy is a more important way to treat stomach cancer, and chemotherapy drugs often have side effects. Platinum, a common chemotherapy drug for stomach cancer, often causes peripheral nerve injury, resulting in numbness, electric shock and stiffness of limbs. Therefore, during chemotherapy, pay attention to keep the limbs warm to reduce the probability of peripheral nerve injury. If the numbness and stiffness have already appeared, pay attention to keep warm and take oral nerve-nourishing drugs, such as methylcobalamin, which can relieve some patients. Therefore, the prevention of numbness, electric shock and stiffness caused by peripheral nerve injury of chemotherapy for stomach cancer is important. It is suggested that patients should consult the doctor in time if they have any discomforts and treat them actively so as not to delay the condition.