A 3-year-old girl with low estrogen levels and an underdeveloped vulva will not usually heal on her own and will need to be treated immediately if labia minora adhesions occur. Because 3-year-old girls have low estrogen levels and the vulva is not fully developed to cover the urethral and vaginal openings, they are very susceptible to infection by bacteria, viruses and other pathogens. If adhesion of the labia minora occurs, it usually does not heal on its own and needs to be treated in time, otherwise it will form dense adhesions and cause urinary obstruction. If parents in the process of bathing the child found three-year-old girl with labia minora adhesion, it is recommended to take the child to the hospital in a timely manner to improve the relevant examination, to determine the degree of adhesion, under the guidance of the doctor for treatment.