Do you need your colon to live?

No, a person can survive without a colon. The colon is the final portion of the large intestine, and its main function is to store waste before it is eliminated from the body. Without a colon, the body would not be able to store waste as efficiently, and would need to eliminate it more frequently. However, the body is able to adapt to this change, and a person can live a normal life without a colon.