The symptoms of blood in stool and weight loss are not necessarily bowel cancer. The symptoms of blood in stool and weight loss alone cannot determine bowel cancer, which requires histopathological biopsy for diagnosis. Early stage of bowel cancer may be asymptomatic, but slowly there may be increased frequency of bowel movement, diarrhea, constipation, mucus stool, blood stool, pus blood stool, etc. There may also be abdominal pain or abdominal discomfort, abdominal mass, anemia, emaciation, fatigue, low-grade fever, etc. However, there are other diseases that may also cause blood in stool, but there are other diseases that may also cause blood in stool. But there are other diseases that can also cause blood in stools and weight loss, such as hemorrhoids often chronic bleeding, people may also become thin, and intestinal polyps may be. Therefore, the symptoms of blood in stool and weight loss are not necessarily bowel cancer. Therefore, if you have this symptom, you should consult the doctor in time. Generally, it is recommended to go to the Department of Anorectal Surgery for anal examination, further colonoscopy if needed, and biopsy if necessary, which will help to make a clear diagnosis.