In the hot summer, many people feel dry mouth, thirst, some people think it is sweating more caused by. Indeed, the summer temperature is higher, the human body sweat pores for a longer time in the open state, sweating more, so that the body water loss, causing dry mouth, thirst. Under physiological conditions, symptoms can be significantly relieved after timely hydration. If your symptoms do not improve after drinking water, or if your mouth is dry but you do not want to drink water at all, you need to pay attention to it. Some people think that dry mouth is on fire, eat some laxatives on the good, but in fact, Chinese medicine believes that dry mouth can involve the lungs, kidneys, spleen, stomach and other internal organs. Mainly the following conditions: 1, external wind-heat, dry mouth and drink more, can be accompanied by fever and vicious wind, mostly seen in the early stage of external warm-heat disease; 2, stomach fire, dry mouth and like cold drinks, can be accompanied by irritability, dry stool, yellow urine, red tongue and other symptoms; 3, yin deficiency, dry mouth and not drink more, accompanied by zygomatic red, night sweats, red tongue and less fluid; 4, damp-heat, dry mouth and not drink more, and body heat is not raised. 5.Phlegm-drink internal stagnation, the dry mouth does not like to drink, or like hot drinks, but not much water, or even dry mouth does not want to drink, the tongue is fat and light coating lubrication; 6.Stasis of blood stasis, the dry mouth, only want to gargle water to moisten the mouth but not want to swallow, the tongue is purple and dark with bruises or bruises; 7.Cold-heat mixed, dry mouth with qi up to the heart, heart pain and heat, hunger does not want to eat. Some elderly people with dry mouth will think of measuring blood sugar to see if they have diabetes. This is very good, most clinical patients with diabetes will have symptoms of dry mouth, especially dry mouth at night is obvious. But dry mouth can occur in dry syndrome, hyperthyroidism, chronic pharyngitis, anemia, tuberculosis, urolithiasis, menopausal syndrome, etc. Some oral diseases, such as chronic submandibular gland inflammation, parotitis, oral glandular stones, etc. can also occur. Therefore, if you have symptoms of dry mouth and cannot be relieved within a short period of time, it is recommended to go to the hospital for a systematic examination to avoid delaying the disease.