Whenever winter comes, the number of patients in nephritis specialist clinics will increase significantly until spring of the coming year. Does nephritis have anything to do with the season? The answer is yes. Winter and spring are good seasons for respiratory infections. In Shanghai, a coastal area with a large temperature difference between morning and evening, upper respiratory tract infections are very likely to be prevalent in winter and spring, so if you observe, you will find that the number of patients with fever, cough and sore throat is significantly higher now than in autumn. Upper respiratory tract infections, including tonsillitis, otitis media, etc., can easily induce acute nephritis. This is mainly because there is a hemolytic streptococcus that can cause acute nephritis through immune complexes, with swelling, hematuria, proteinuria and hypertension. Therefore, if someone, especially a child, has a sore throat, cough or fever, it is important to treat it promptly and never delay the condition because of stressful studies or busy work. For chronic nephritis, infection is also a cause of recurrent disease. Research data shows that infection is the most important cause of exacerbation of chronic nephritis. Although most patients get better after timely treatment, each exacerbation will cause some damage to the kidneys, and over time, the condition will recur, eventually leading to chronic renal failure. Patients with hypertension nephritis, due to the cold weather, reflexively cause vasoconstriction, blood pressure is more difficult to control, and hypertension is prompted by the deterioration of kidney function, until the emergence of serious complications such as uremia. Therefore, nephritis patients with hypertension must follow the doctor’s instruction and control their blood pressure carefully to avoid rapid deterioration of kidney function. There are also many kidney diseases, such as lupus nephritis and IgA nephropathy, which are related to cold. Therefore, it is important to be alert to the occurrence and aggravation of nephritis in winter and spring. Therefore, patients with a history of kidney disease, the onset of winter and spring, as far as possible to do the following: 1, improve ventilation, prevention of influenza. Regularly opening windows and doors for natural ventilation can effectively reduce the number of microorganisms in the indoor air, improve indoor air quality and regulate the microclimate of the living room, which is the simplest and most effective method of indoor air disinfection. 2. Pay attention to personal hygiene and protection. Good hygiene habits are the key to preventing spring infectious diseases. Change and wash clothes regularly, and expose bedding to the sun when the weather is good. During the season when respiratory infectious diseases are prevalent, gatherings should be reduced and public places should be visited less often. 3, strengthen exercise, enhance immunity. Actively participate in physical exercise, go outdoors to breathe fresh air, walk, jog, do exercises, boxing and so on every day to make the body blood flow smoothly, stretch the muscles and bones, and enhance physical fitness. To reasonably arrange the amount of exercise, avoid strenuous, large amounts of exercise. 4, regular life, to maintain adequate sleep. To reasonably arrange the work and rest, to achieve a regular life, work and rest. 5, clothing, food details to pay attention to. The climate is changing, add and remove clothes at the right time, do not reduce too much at once; exercise after sweating to avoid wind and cold. Reasonable arrangements for diet, do not smoke, do not drink, do not eat spicy food, to reduce the stimulation of the respiratory tract. Do not drink raw water, do not eat unclean food, refuse to eat all kinds of raw seafood and meat and eat fruit with skin. Drink more water, take enough vitamins, and eat more food rich in high-quality protein, sugar and trace elements, such as lean meat, eggs, dates, honey and fresh vegetables, fruits, etc. to strengthen the body’s resistance. 6, timely medical care, regular checkups. Therefore, when you find that you are not feeling well or have similar reactions, you should seek medical attention in a timely manner, especially if you have fever symptoms or urine routine abnormalities, you should make a clear diagnosis as soon as possible and carry out treatment in a timely manner.