13-year-old girl urinating on both sides is not the same may be bilateral labia minora development asymmetry, generally do not need to deal with, if it is caused by localized lesions need to go to the hospital in a timely manner. 1.13-year-old girl is in puberty, due to ovarian secretion of estrogen and progesterone so that the girl’s secondary sexual characteristics began to develop, the common development of external genitalia, including the pubic mound, labia majora and minora, clitoris, perineum, etc., which the labia minora and the urethral and vaginal orifices are adjacent to the labia minora is symmetrical labial structure, but part of the female in the process of development may be adhered to and other factors caused by the asymmetric development of the labia minora bilaterally, if the However, some women may have adhesions and other factors that cause bilateral labia minora asymmetry during development. 2. If bilateral labia minora asymmetry is serious, causing pain, breakage or local lesions, it is necessary to go to the hospital in time to avoid serious consequences. Adolescent girls who find bilateral labia minora asymmetry can go to the hospital in time to listen to the physician’s diagnosis and treatment recommendations, if there is no obvious discomfort, can be observed, to be further processed after adulthood.