Dry syndrome is caused by the disorder of human autoimmune system, mainly manifested as dry mouth and dry eyes, which can exist alone or appear in other autoimmune diseases. The incidence of this disease is high, on average, there are 5 people suffering from this disease in every 1000 people in China, 3 in every 100 elderly people, and the number of female patients is obviously more than male. In particular, the incidence rate of middle-aged women in their 40s is 10 times higher than that of men. Besides involving salivary glands, lacrimal glands and other exocrine glands, dry syndrome also causes liver disease, kidney disease, lung disease, arthritis, blood disease, etc. In addition, 5% of dry syndrome patients will suffer from lymphatic and bone marrow tumors, which is 40 times more than normal people. It takes 5 to 10 years for most patients with dry syndrome to be diagnosed from the time they have symptoms, so early detection and timely treatment are especially important to stop the further development of the disease. If the following conditions occur, you should be alert to dry syndrome: 1. Dry eyes: dry eyes with “foreign body feeling”, gritty feeling or burning feeling lasting for more than 3 months, morning eyes with a lot of stool, photophobia, red and swollen eyes or fatigue, some patients can’t bear to wear contact lenses and have to use eye drops to moisten eyes more than 3 times a day, and serious cases can’t cry. 2, dry mouth: need to drink water frequently, often water cups do not leave the body, say two words need to drink a sip of water to relieve dry mouth. Waking up at night after sleep by dry mouth up to 3 times or more. Need water to send down when eating solid food such as cookies and steamed buns, and those who are serious about eating must drink soup to swallow. 3.The caries or tooth loss appears rapidly in recent months or years: Due to the decrease of saliva secretion and the corresponding decrease of antibacterial components in saliva, the gums appear atrophy and then the teeth fall off or are damaged. 50% or more of the patients with dry syndrome have more worm teeth, the tooth surface is black, the teeth fall off in small pieces and many patients are full of dentures at a young age. Therefore, multiple caries or tooth loss without any explanation may be the first manifestation of dry syndrome. 3.Atypical arthralgia: pain in finger joints, wrist or shoulder joints, weakness, sometimes feeling numb and stiff, joints may or may not be swollen. 4. Repeated purulent infections: frequent colds, on average once every 1-2 months, with sore throat or fever, yellow sputum, or recurrent urinary tract infections such as frequent and urgent urination, increased leucorrhea, yellowish consistency and foul odor in some women. Some of them have recurrent boils on the skin. The patients often think that it is caused by their poor resistance. The medical 5, recurrent parotid enlargement: similar to the onset of mumps, bilateral parotid enlargement with pain and tenderness, periodic episodes, the enlarged parotid gland can rise and fall over time. If the above abnormalities occur in your body, you should not ignore them and pay enough attention to them. In addition to visiting the corresponding specialties such as dentistry and ophthalmology, you should also consider visiting the rheumatology department for dry syndrome related examination. As a systemic disease, dry syndrome, if detected early and treated early, can effectively slow down the progress of the disease and the prognosis is usually better. If not actively treated, it may cause autoimmune liver disease, interstitial lung fibrosis, renal tubular acidosis, abnormal thyroid function, chronic pancreatitis and other systemic damages. Therefore, early detection and treatment are especially important. Experts suggest that the best way to prevent dry syndrome is to replenish water, in addition to strengthening the body and improving the ability to resist diseases. It is advisable to drink more water, porridge and soy milk, and eat more radish, lotus root, water chestnut, pear, honey and other foods that moisten the lung and produce fluid, nourish Yin and clear dryness. Try to eat less or no chili, onion, ginger, garlic, pepper and other hot and dry products, and eat less fried and fatty food to prevent aggravating the dryness symptoms. The endless work and the stress brought by work will lead to the disorder of body immune function and induce dry syndrome; keep optimistic mood, calm mind, often go for a walk in the fresh air, which is conducive to the smooth flow of qi and blood and the recovery of immune function. Patients with dry syndrome should usually bring protective goggles, avoid light and wind, and keep the room moist; pay attention to protecting teeth, rinse your mouth after meals, and treat toothache or tooth loss in time. In addition, no matter where dry syndrome patients go for medical treatment, they should take the initiative to inform the hospital of their condition to prevent accidents due to dry airway and mucus blockage during and after surgery.