Routine gynecological examination can be performed 3 days after menstruation, such as routine examination of white belt, mycoplasma, chlamydia or cervical cancer screening. In addition, ultrasound can be performed to understand the condition of the endometrium and adnexa, because the endometrium is thin and in a primitive state just after menstruation, so that the condition of the adnexa and endometrium can be better understood. Therefore, if gynecological examinations are performed, certain examinations are routinely performed within 3-7 days after menstruation, and hysteroscopic examinations or surgeries are also chosen within 3-7 days after menstruation. Therefore, whether it is a gynecological procedure or a gynecological examination, it is better to perform it after the menstrual period, when the examination or treatment is more effective.