Weight loss in a short time may be due to some diseases. In view of the rapid weight loss, we must pay attention to check whether there are digestive system diseases. First, we must pay attention to whether the diet is normal. On the basis of normal diet, we must be alert to diseases caused by endocrine. Pay attention to whether there is hyperthyroidism and thick neck, and you can make a preliminary diagnosis by thyroid color Doppler ultrasound and thyroid function blood test. We can't rule out whether it is caused by diabetes. We can check urine routine and fasting blood sugar for diagnosis. At the same time, we need to pay attention to observe whether there is diarrhea, abdominal pain and other phenomena. We need to be alert to the danger of malignant tumor and lose weight too fast. It may be a metabolic disease or a malignant tumor. Relevant tests must be done to confirm the diagnosis.

The reasons for people's sudden weight loss, such as whether the calorie intake is sufficient, whether protein is sufficient, whether there is a partial eclipse or pica, and whether there is a habit of eating fish, shrimps and crabs, raw vegetables, raw beef and mutton, such as eating aquatic plants such as water chestnut, plums and lotus roots. , can cause Jiang Ye's disease parasitic in the small intestine, causing diarrhea, digestive dysfunction and malnutrition; Eating raw or undercooked fish, shrimp and crabs can cause clonorchiasis, and eating raw crabs or cigarettes can cause paragonimiasis. Eating raw or undercooked beef and pork can lead to taeniasis; Eating fruits and vegetables with parasitic eggs and unclean drinking water can cause cysticercosis, echinococcosis and ascariasis, which can cause wasting.