Normal menstruation is dark red in color, and early lesions of cervical cancer are often detected by physical examination. The disease can have no obvious abnormal vaginal bleeding or fluid, and with the development of the disease there can be contact bleeding, which is commonly known as coital bleeding. Early cervical lesions do not affect menstruation, that is, contact bleeding. Cervical cancer is diagnosed through examination and biopsy, followed by surgery, or radiotherapy according to age and physical condition. With the progression of the disease, cervical cancer may show abnormal irregular vaginal bleeding and fluid, which may affect menstruation, manifesting as prolonged menstrual period, increased menstrual flow, and drenching bleeding between periods. Some patients may not be able to tell whether it is normal menstruation or abnormal vaginal bleeding, and the bleeding may be bright red or dark red. Advanced cervical cancer can have abnormal leukorrhea, rice soup-like leukorrhea or blood in leukorrhea, or it can show obvious increase in menstrual flow and odor, and menstrual blood will also have a foul smell when cervical cancer is combined with infection.