1, malignant tumor is a chronic wasting disease, and tumor cells need far more energy and nutrition in the growth process than normal tissues. And with the growth of the tumor, this consumption will increase day by day. At the same time, tumors are often accompanied by bleeding, fever and other symptoms, and toxic substances produced by tumors will also affect the appetite of patients, making the body's intake of nutrients obviously insufficient, leading to serious weight loss of patients.
Of course, cancer is not the only reason why people lose weight quickly. Generally speaking, if there are no artificial reasons in the short term, you will suddenly lose weight; Or within a month, you lost 10 kilograms. Even if you don't feel strange, you should seek medical advice in time. Especially for middle-aged and elderly people, once they suddenly become thinner, it is best to exclude tumors.
2. In addition, emaciation of other diseases will be accompanied by some symptoms. For example, diabetic patients will have hypoglycemia symptoms such as dizziness and palpitation when they are hungry for a long time; Patients with hyperthyroidism generally don't eat less, accompanied by thick neck or palpitation and insomnia. Patients with liver cirrhosis will be accompanied by fatigue and diarrhea. If you have some symptoms of intestinal polyps and gastrointestinal tract, you can do a blood test first, such as checking carcinoembryonic antigen and alpha-fetoprotein, and then take a chest X-ray to rule out whether there is a tumor in the lungs.