Medical anal fakehospital examination
However, some men have prostate cancer with a low PSA, and in such cases DRE is the only way to find out if they have cancer.
It is also a common procedure in cattle, and is one method of diagnosing pregnancy in both the horse and the cow. The distal colon has an S-shaped part (the sigmoid, from the Greek word for the letter. The procedure in dogs and cats is similar to humans.