The balloon is placed after hysteroscopy, and is usually taken out in 1-2 days, or 3-5 days if the uterine cavity is more invasive. Generally the balloon is placed in the uterine cavity to prevent the occurrence of uterine adhesions, the specific placement time should be based on the condition of the doctor’s orders, and need to maintain local hygiene, the use of antibiotics to prevent infection. Do not remove the balloon on your own to avoid pain, cracks and infection. The purpose of placing the balloon after hysteroscopy is to prevent uterine cavity adhesion, the doctor will judge whether it is necessary to place the balloon in the uterine cavity after the uterine cavity operation, and placing the balloon can play a physical prevention of endometrial surface adhesion. After placing the balloon, try to rest in bed and reduce activities to prevent the balloon from falling off. However, the balloon is a foreign body, placed in the uterine cavity is prone to infection, in the process of placement, must pay attention to the hygiene of the vulva, routinely given antibiotics to prevent infection. If the lining of the uterus is thin, the doctor will usually recommend taking estrogen-containing medications to promote lining repair, such as estradiol valerate tablets, estradiol tablets/estradiol dextroprogesterone tablets, and so on. Generally speaking, women usually need to place a balloon in the uterine cavity after surgery for uterine adhesions. How long the balloon needs to be placed depends on the recovery situation, in most cases, it needs to be placed for 1-2 days, but how long the balloon needs to be placed should follow the doctor’s arrangement. In addition, after the placement of the mirror balloon in the uterine cavity, it is important to take more rest and reduce activities in order to avoid dislodging the balloon or causing severe pain symptoms. During the recovery period of the surgery, you also need to avoid sexual intercourse, tub baths and swimming to avoid aggravating the infection.