HFMD is an infectious disease caused by an enterovirus, and some children with HFMD will develop stratified nails once they have recovered from the disease. Hand, foot and mouth disease is mainly a viral infectious disease, after infection most children are mild, can appear in the mouth, palms, soles of the feet, as well as buttocks, inner thighs rash, some children have a better prognosis, the disease recovery will appear after the temporary nail delamination, but later new nails grow out, it will be better, pay attention to the disease recovery after active nutritional adjustment, you can restore the nails normal. Other diseases that cause abnormal nail structure, such as vitamin deficiency, anemia or fungal infections, should also be ruled out.