There are not necessarily 10 signs of a clean uterus. Common symptoms of a clean uterus include: little vaginal bleeding, good uterine contraction, and no foreign objects in the uterine cavity. 1. Vaginal bleeding is small: after the female patient undergoes the procedure, if it is relatively clean, the amount of vaginal bleeding is relatively small, the duration of vaginal bleeding is relatively short, and there are generally no obvious discomfort symptoms. 2. Good uterine contraction: after the purging operation, the uterine contraction can promote uterine repair, if the purging is clean, there may be a good performance of uterine contraction. 3. No foreign matter in the uterine cavity: female patients undergo pelvic ultrasound examination, if there is no embryo and its appendages left in the uterine cavity, and there is no residue in the uterine cavity, it can be determined that the uterus is clean.