Feeling dry lips, the possible reasons include dry weather, water intake is too low, diet eat more salty, in addition to the need to rule out diabetes, hyperthyroidism and other diseases caused by. Dry weather, or strenuous exercise so that too much water evaporation, but not enough supplementation, resulting in the loss of water in the body, there will be dry lips, cracked, thirst is great, replenish the water and electrolytes dry mouth phenomenon can be improved. Dietary aspects of eating more salty, will also feel dry lips, reduce dietary salinity, the symptoms will be improved. Diabetes mellitus or hyperthyroidism patients, the body for a long time in a high metabolic state, increased consumption, easy to dry mouth and thirst symptoms, can not help but feel more food and drink, drink more. These pathological factors need to go to the hospital, under the guidance of the doctor for treatment to improve the metabolic abnormalities.