It is normal for a child’s vaginal opening to be open, but it is not normal if it is accompanied by redness, swelling, pain and other discomforts. Children due to the body’s hormone level is relatively low, the body’s reproductive organs are not fully developed, at the same time the labia majora and minora development is not perfect, so can not completely cover the vaginal opening, may be manifested as a slight opening of the vaginal opening, which is a normal phenomenon, if the child does not have any discomfort, do not worry about it too much. However, if the opening of the vaginal opening is obviously accompanied by redness, swelling and pain, it is an abnormal situation. Because of the child’s young age, it is possible to mistakenly insert a foreign object into the vagina, which can also be manifested as vaginal opening, and need to go to the hospital in time for consultation. Pay attention to keep the child’s vulva clean, wash the vulva every day and change the underwear regularly. If the opening is obvious, it is advisable to consult a doctor to assess the situation.