People with thin bodies often have family history and no pathological manifestations. These people may be thin in their own homes, so their backstage bodies are also thin.

2. Economic situation and eating habits

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.

3. Local occupation

Many farmers or fishermen in rice fields in southern China have been repeatedly exposed to infected water contaminated by Schistosoma japonicum. Contact with cattle, sheep and barns in pastoral areas may lead to echinococcosis; Ancylostomiasis and ascariasis are common in rural areas, and they may lose weight when they are seriously infected.

4. Hyperthyroidism

If your food intake has not decreased, but your weight has been reduced repeatedly, accompanied by thick neck or palpitation, insomnia and so on. You may have hyperthyroidism. Experts say that hyperthyroidism in the elderly is not as easy to identify as that in young people. About13 patients have no goiter, which is mainly manifested as getting thinner and thinner.

5. Cancer constellation

Such as colorectal cancer and pancreatic cancer. The early symptoms of cancer are not obvious, but emaciation is definitely one of them. Gastrointestinal surgery experts pointed out that taking colorectal cancer as an example, it may also be accompanied by painless bloody stool, and people over 50 should be vigilant.

Generally speaking, once a tumor is diagnosed, it may be advanced. Therefore, if you find yourself losing weight for unknown reasons in your life, or someone around you says so, you should be on your guard. "Tumor growth needs nutrition, and it will compete with other organs of the body for nutrition, and it is easy to lose weight."

6. Diabetes

According to experts, the early manifestations of diabetes are polyuria, polydipsia and polyphagia, accompanied by emaciation. Experts pointed out that this is because patients do not have enough insulin in their bodies and cannot make full use of glucose in their blood. The body always needs energy. If you can't use glucose, you will only consume fat, leading to a sudden weight loss.

7. Cirrhosis and ascites

Sudden weight loss is easily associated with liver disease, but many patients do not see a doctor in time because of face or busy work. "I have seen such patients in outpatient clinics," said the liver expert. "He lost 10 kilograms in two months, his eyes were obviously sunken and he had been insomnia. After examination, it is cirrhosis. "

Experts pointed out that suffering from liver diseases such as cirrhosis and ascites will inevitably lead to a decline in anabolism and an increase in consumption metabolism, and people will lose weight within a few days. Another sign of cirrhosis is weight loss accompanied by fatigue and diarrhea.

8. Chronic gastrointestinal diseases

Suffering from chronic gastrointestinal diseases, such as chronic gastritis, peptic ulcer, duodenal bulb inflammation, chronic nonspecific enteritis, etc. , make digestion and absorption function decline, cause emaciation.