There are many causes of thirst, some are due to poor lifestyle habits, love of salty food, staying up late, drinking alcohol, etc. Symptoms can be improved by changing poor lifestyle habits, if there is still unrelieved thirst symptoms need to seek medical attention; some are caused by certain diseases, in the development of many diseases will appear dry mouth symptoms, such as: diabetes, dry syndrome, diarrhea, vomiting The differential diagnosis needs to be made based on test results.
If there is a combination of polyhydramnios, polyuria, and weight loss, blood glucose and glycosylated hemoglobin need to be checked to rule out diabetes mellitus, which can be diagnosed with fasting venous glucose ≥ 7.0 mmol/l or random glucose ≥ 11.1 mmol/l.
If there is a combination of dry throat, dry eyes, dry nose, sore tongue, cracked tongue, dyspnea, purpura-like skin rash, or indigestion, you need to rule out dry syndrome; if there is a combination of hand tremors, panic attacks, insomnia, weight loss, irritability, and diarrhea, you need to rule out hyperthyroidism.