Pain in the lower back combined with pain in the abdomen is not caused by cancer because pain in the lower back and pain in the abdomen is often caused by inflammation of the spine and the surrounding soft tissues, or inflammation of the urinary system, gynecology, and intestines in the abdominal area, and it cannot be considered as caused by cancer alone. It is better to go to the hospital for relevant examinations, such as magnetic resonance of lumbar vertebrae to see clearly the spine and the surrounding soft tissues, and ultrasound examination of the abdomen to see whether there is any abnormality of the organs in the abdominal area, so that a clear diagnosis can be made, and then relevant symptomatic treatments can be carried out, and it is not possible to consider that it is cancer after the occurrence of abnormalities, which would lead to an increase in psychological pressure and an increase in the body’s immunity and other aspects. It is not advisable to consider cancer after an abnormality has appeared, as this will lead to increased psychological pressure and affect the body’s immunity and other aspects, so it is not desirable.