Lung adenocarcinoma surgery does not usually delay menstruation. Lung adenocarcinoma is a kind of lung cancer, which belongs to non-small cell carcinoma . Surgical resection is the main treatment for lung cancer, which is divided into radical surgery and palliative surgery. Common complications of surgery include incision pain, numbness, cough, chest tightness, dyspnea and so on, mainly lung symptoms. Delayed menstruation after lung adenocarcinoma surgery is mostly unrelated to surgery. Delayed menstruation may be caused by emotional and dietary factors, such as emotional anxiety, irritability, nervousness, or too oily and over-nutritious diet. Some pathological factors also lead to delayed menstruation, such as uterine adhesion, polycystic ovary syndrome, pituitary tumor and so on. If lung adenocarcinoma patients experience delayed menstruation after surgery, it is recommended to go to regular hospitals for consultation, to clarify the cause of the disease and receive appropriate treatment.