Mumps in children is a contagious disease, and its complications can cause significant damage to the body. Its early symptoms often manifest as swelling below the earlobe, sometimes starting on one side and then appearing on the opposite side a few days later, or swelling can occur simultaneously on both sides, including the entire area around the earlobe, often with noticeable redness and tenderness. Additionally, affected children may also experience fever, headache, sore throat, loss of appetite, and nausea. Diagnosis can be confirmed through lymph nodes in the neck and an ultrasound of the parotid gland, and it can also be diagnosed by complete blood count and antibody tests to provide symptomatic treatment.