Symptoms of cancer in various parts of the body are mainly related to the part of the body where the cancer occurs, and also vary from person to person, and should be analyzed specifically, while fatigue is a common manifestation of cancer development. Patients who suffer from cancer, due to the growth of cancer, the consumption of the body, the decline of the immune ability, may be widely seen more often than not, such as wasting, fatigue and other symptoms. However, different cancers with different parts of the body may cause different symptoms. For example, patients with leukemia have recurrent infections, fever, bleeding and other symptoms; patients with lymphoma have recurrent low-grade fever, emaciation; if it occurs in the breast, there can be lumps felt in the breast, nipple depression and so on; for esophageal cancer, there can be obstruction of eating, difficulty in swallowing and other symptoms. Therefore, if you are not feeling well, you should pay attention to it and go to the Department of Medical Oncology of regular hospitals for consultation and examination in time. Early detection can be conducive to the control and treatment of the disease.