Bowel cancer triggers tinnitus, which is usually caused by cancer cells damaging the gastrointestinal digestive system. Tinnitus is a symptom of the digestive system and is not usually heard in people with a healthy gut. Cancer cells in bowel cancer patients can damage some of the functions of the intestinal system, which is the cause of the patient’s digestive problems, leading to obstruction or abnormal conduction in the intestines, which can lead to the appearance of tinnitus. Bowel cancer patients should try not to consume foods that are difficult to digest and high in protein in their daily life, and avoid stimulating foods at the same time, which can effectively avoid the occurrence of tinnitus. For early-stage bowel cancer patients, surgery can be used to remove the diseased part in order to achieve cure. Bowel cancer patients should have timely treatment to avoid aggravation of the condition.