In general, HFMD is most prevalent in the summer when the weather is hot and very rare in the winter. Every year, there will be a small number of disseminated cases of HFMD in March, and as the weather warms up, there will be more and more cases in April, and the peak of HFMD incidence will be around May 1, which will last until about October, and after October, when the weather is colder, there will be very few cases of HFMD. So throughout the summer is a high incidence of hand, foot and mouth disease season, when you must try to avoid letting children go to crowded places, must develop good hygiene habits, before eating must wash their hands, so as to effectively prevent hand, foot and mouth disease.