Colposcopy is recommended to be performed around 3 to 5 days after menstruation, but can be performed at any time if the patient’s condition is more serious. Colposcopy is mainly used to detect lesions associated with gynecological cancers, in addition to precise pathological sampling with magnification in order to improve the accuracy of examination of abnormal lesion areas. When a woman is clean for 3 to 5 days after her menstruation, there is no bleeding from the vagina, and the vaginal secretion is reduced at this time, which causes less impact on the examination, and the taking of pathology will not cause too much bleeding, so it is better to do the examination at this time. However, if the patient has high-risk human papillomavirus or HPV infection or suspected cervical cancer, colposcopy can be performed at any time in order to make a clear diagnosis as early as possible. It is also important to note that if the patient has an inflammatory infection it is not possible to have a colposcopy. If the patient needs to do colposcopy, it is recommended to consult a doctor in time, complete the relevant examinations under the guidance of the doctor, and then follow the doctor’s instructions to choose a reasonable time to do colposcopy.