The phenomenon of salty lips may be caused by dietary problems, chronic nephritis or oral diseases and other factors. 1. Dietary factors: due to the diet is too heavy salt or consume too much chicken essence and lead to the residue stagnation in the lips, so that the phenomenon of salty lips; 2. Chronic nephritis: due to the damage of kidney function and lead to saliva containing sodium, potassium and magnesium content increases, so there will be salty lips symptoms, accompanied by proteinuria, edema and other phenomena; 3. Oral disease: if the body suffers from periodontitis, wisdom teeth pericoronitis and gingivopapillitis and other oral diseases, may also lead to salty mouth feeling. If the above symptoms occur and dietary problems are ruled out, it is recommended to enter the hospital to identify the cause of the disease and actively cooperate with the doctor for treatment.