A colposcope is inserted into and through the vagina into the uterus to visualize the uterus and diagnose whether the patient has an endometrial myometrial defect or a functional layer defect. At the front of the colposcope is a medical magnifying endoscope speculum that provides real-time feedback on the inside of the woman’s vagina to the receiving instrument. The doctor will place the speculum device inside the vagina and gradually look inside the vagina, cervix, and uterus, and the endometrium and myometrium will show different signals, which can then determine whether the patient has a functional or myometrial defect, or whether the patient has a functional or myometrial defect. Colposcopy is a gynecological examination commonly used in clinical practice, which has a positive effect on the diagnosis of cervicitis, vaginitis, cervical polyps, sarcoidosis, cervical cancer and other diseases, and this examination method is of high value for clinical diagnosis, and is therefore widely used in medicine. Patients should avoid sexual intercourse before colposcopy so as not to affect the test results.