The pubic symphysis bulge in adolescent girls may be related to the development-related bone itself or the presence of a certain degree of anterior pelvic tilt, etc., which is generally a normal phenomenon. 1. Development-related bony causes: some girls tend to have a more prominent pubic symphysis during development, especially for slimmer girls, while others have a less prominent development, which is generally a normal phenomenon and does not require special treatment. 2. There is a certain degree of anterior pelvic tilt: when the pelvic anterior tilt is serious when the localization will be prominent, you can carry out the functional exercise of the lumbar back muscles, can make the pelvic anterior tilt to be partially corrected, the pubic bone bulge is not so serious. Pubic bone joint bulge in adolescent girls may also have other reasons, can go to the hospital for examination, further clear diagnosis.