Itching of the vulva during menstruation is most likely due to failure to change sanitary napkins regularly, as menstrual blood comes into contact with the vulva on the sanitary napkin, causing skin irritation and itching. It is recommended that sanitary napkins should be changed regularly and local cleanliness should be maintained, and that the vulva be washed with lukewarm water 1-2 times a day to avoid the itching symptoms. If there is no improvement after the above treatment, it is recommended to wash the vulva with 30% of Cleanse, and it is also recommended to apply mometasone ointment locally twice a day, and the itching will soon be relieved. After the menstruation is completely clean, go to the hospital to do the corresponding examination, the best to do the routine examination of the leukorrhea, according to the results of the clinic and then give the appropriate medication to treat the menstrual period to keep the vulva clean is very necessary.