A very important reason for the poor treatment effect of malignant tumor is that it cannot be detected at an early stage. When waiting for obvious symptoms, it is often the progressive or even late stage of the disease. If early detection is possible, the cure rate of malignant tumors can be greatly improved. Some information reports that the cure rate can reach 65% with early detection of cancer. This shows the importance of early diagnosis and treatment of malignant tumors. When the following symptoms appear in the elderly, it is necessary to raise the alert of malignant tumor: (1) lumps appear on the skin or under the skin of the body and grow progressively; untreated ulcers appear on the skin; moles on the skin suddenly grow, bulge and ulcerate; (2) unexplained anemia, weakness, emaciation and low fever; (3) cough, sputum, chest pain and hemoptysis that are ineffective in treatment; (4) difficulty in swallowing and choking feeling after eating; (5) cough, sputum, chest pain and hemoptysis that are ineffective in treatment; (6) cough, sputum, chest pain and hemoptysis. (5) persistent white spots, ulcers or lumps on the lips, tongue, or vulva; (6) unexplained snotty blood, hoarseness; (7) painless lymph node enlargement (neck, armpit, groin, etc.); (8) epigastric pain, loss of appetite, black stool, nausea, vomiting; aggravation of symptoms of existing gastric disease, change in pain pattern, symptoms not relieved after taking medication; (9) painless hematuria; ( (10) change in stool habits and characteristics, persistent diarrhea, constipation, thin stools, mucus stools, pus and blood stools, etc.; (11) irregular vaginal bleeding or secretion of foul-smelling fluid in women; (12) rapid growth of breast lumps in a short period of time, localized “orange peel-like” appearance of the skin, bloody discharge from the nipples. (12) A rapid growth of breast lumps within a short period of time, local skin with “orange-like” appearance and blood discharge from nipples. Seek medical attention in time, improve the necessary auxiliary examination, early diagnosis and early treatment, malignant tumors can also obtain better treatment results.