患者受感染后,大多无前驱症状,部分患者可有倦怠、畏寒、食欲不振、低热、头痛等症状,其后则出现一侧腮腺肿大或两侧腮腺同时肿大,2-3日内达高峰,面部一侧或双侧因肿大而变形,局部疼痛、过敏,开口及咀嚼时疼痛明显,含食酸性食物胀痛加剧,常可波及邻近的颔下腺、舌下腺及颈部淋? Most patients have no prodromal symptoms after infection. Some patients may have symptoms of fatigue, chills, loss of appetite, fever, headache and other symptoms, followed by swelling of the parotid gland at one side or both parotid glands at the same time, within 2-3 days Peaks, one or both sides of the face due to swelling and deformation, local pain, allergies, pain and opening chewing obvious, aggravating pain with acidic foods, often affecting the adjacent subgregate gland, sublingual gland and neck lymph ?