Many parents of newborn baby girls find that their baby’s perineum looks different from their own when they clean the perineal area. There is only a pee hole between the labia; why is this? Is there something wrong with the baby? Is there a serious problem? How can I treat it? First of all, there is definitely a problem. Generally speaking, interlabial membranous adhesions are considered labia minora adhesions. The causes are local estrogen deficiency or local inflammatory adhesions. Generally speaking, to diagnose labia minora adhesions, we should first exclude organic changes such as hermaphroditism and vaginal atresia through ultrasound and other examinations, if there are no such problems, there are usually no too serious problems, however, we should also recognize that perineal adhesions cause urinary tract infection and vaginal labia in serious cases. Treatment includes: i. Local separation: blunt separation is used, the simplest can be easily separated by Wen’s forceps or sterilized cotton swabs; ii. Local estrogen therapy, etc. The best treatment is topical estrogen to prevent re-adhesion after separation! This disease is easy to detect, simple to treat, and has clear efficacy; however, parents need to pay attention to the usual observation to detect the problem early.