Eyelid jumping during breast cancer chemotherapy is usually not caused by breast cancer chemotherapy, it may be caused by mental tension, excessive staying up all night, and excitation of the motor nerve. Chemotherapy for breast cancer patients generally does not cause eyelid jumping, and the common side effects of chemotherapy are nausea and vomiting, abdominal pain, abdominal distension, constipation, indigestion, loss of appetite, reduction of blood cells, hair loss, weakness and other side effects. Eyelid jumping may be caused by mental tension, nerve excitement, excessive late night, etc. Patients should rest more, do not use the eyes too much, you can often massage the eye area, so that the eyes get enough rest, avoid mental tension. Patients with eyelid jumping during chemotherapy should actively seek medical attention to clarify the diagnosis. Do not self-medication, but in the physician interview under the guidance of standardized treatment, to avoid further development of the condition.