Generally speaking, there is no relationship between bowel cancer and the fact that the body does not develop red spots. Early stage of bowel cancer patients may have no obvious symptoms, as the disease progresses, abdominal pain, blood in stool, change of bowel habit and character, abdominal mass, intestinal obstruction and systemic symptoms (e.g. anemia, emaciation, malaise and low-grade fever, etc.) may appear, but generally speaking, the body will not get red spots, and the red spots on the body do not belong to the common symptoms of bowel cancer. There are many other causes of red spots, such as skin allergic reactions due to various internal and external causes, causing skin rashes; there may also be vascular hyperplasia, such as cherry-shaped vascular nevus. This symptom alone is not enough to diagnose the disease, and it may be caused by other factors. It is recommended that the patient consult a doctor in time to clarify the cause of the disease and give targeted treatment.