1. Improper exercise: Incorrect posture in the process of exercising abdominal muscles will cause uneven output of both abdominal muscles and uneven abdominal muscles, which can be improved by exercise training.
2, local abnormal lesions of abdominal muscles: such as the growth of lipoma, from the appearance observation, there will be a phenomenon that abdominal muscles are one high and one low, which can be treated by surgical resection to remove local lipoma, thus restoring the balance of muscles on both sides.
3, everyone's exercise habits are different: some people are used to exercising abdominal muscles with the right side, and some people are used to exercising abdominal muscles with the left side, which will make the abdominal muscles uneven and lead to asymmetry.