The optimal period for uterine regrowth is mostly 4-6 weeks after delivery. Most uterine rejuvenation after childbirth is a natural physiological phenomenon. The uterus naturally recovers as the body’s hormone levels drop after delivery. Usually, the uterus and the lining of the uterus can slowly return to their pre-pregnancy state within 4-6 weeks after delivery. In the first 6 weeks after delivery, you can start with the simplest multi-joint mobility exercises, avoiding positions such as lying on your back and chest on the ground to avoid breast diseases. If there are phenomena of incomplete uterine regain, such as inexhaustible bad dew, bad dew odor, etc., you should go to the hospital for examination in time. If there are phenomena such as pelvic floor muscle relaxation, the pelvic floor muscle exercise should be strengthened. The strength of the pelvic floor muscles can be improved through physical therapy and so on. Specific discomfort, to go to the hospital obstetrics and gynecology in a timely manner.