Generally speaking, patients can detect cancer through physical examination, imaging examination and pathological examination. 1. Physical examination: it is the most basic and direct examination item. As cancer patients usually show symptoms of tumor, the development of cancer can be initially judged through palpation and observation. 2. Imaging examination: If the patient has cancer in the body, it is usually necessary to judge it through imaging examinations, such as CT and MRI. 3. Pathological examination: no matter it is early or late stage cancer patients, puncture biopsy can be performed on the test site to clarify the disease. To sum up, it is recommended that patients should go to hospitals for consultation in time and choose the appropriate test according to the specific symptoms under the guidance of professional doctors.