8. A change in bladder or bowel habits
Needing to go to the toilet more often either to urinate or to release your bowels, could be a sign of cancer. Diarrhea and constipation could also be signs of colon cancer.
Signs of prostate cancer include pain when passing urine or blood in your urine.
9. Unexplained bleeding
If you start coughing up blood, this is a big symptom of cancer.
Some other types of bleeding to look out for and get investigated include bleeding from the vagina, or from the anus.
