正常人的口腔内一般是没有异味的,但是在患有某些疾病时,由于人体各种生理功能发生了变化,便会感到口腔的特殊怪味,这往往是某些疾病的特征。甜味由于消化系统功能紊乱,导致各种酶的分泌异常,上述患者唾液中淀粉酶含量过多,舌部味蕾受刺激而产生甜味,多见于糖尿病患者。咸味多见于慢性咽炎或口腔溃疡患者,也可出现在慢性肾炎、肾功能损害者身上。唾液多呈酸性,故感觉的是咸味。酸味常见于胃病和消化道溃疡病。有些胃肠道异常病人的胃酸分泌过多,也往往有口酸感 Normal people's mouth is generally no smell, but in certain diseases, due to changes in the body's various physiological functions, they will feel the special smell of the mouth, which is often characterized by certain diseases. Sweetness due to digestive disorders, leading to abnormal secretion of various enzymes, the patient saliva amylase content too much, the tongue taste buds stimulated by the sweet, more common in patients with diabetes. Salty more common in patients with chronic pharyngitis or oral ulcers, but also in chronic nephritis, renal dysfunction who. Saliva is acidic, so it feels salty. Sour common in stomach and peptic ulcer disease. Some gastrointestinal abnormalities in patients with excessive gastric acid secretion, but also often have a sense of sour