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Hand, foot, and mouth disease (HFMD) is caused by viruses from a group called enteroviruses. HFMD is common in infants and children, but can also affect adults. Symptoms can include fever, sore throat, and blistering sores in the mouth that become ulcers. A rash may appear on the palms and soles of the hands and feet.
Later symptoms of hand, foot and mouth disease. Later symptoms of the condition include (1-8): After the initial day or two of the infection many children develop red spots in the mouth that progress to ulcers. These worsen and are present in the mouth, tongue, tonsils, over gums and insides of the cheeks and throat.