Mae West famously had an enema every morning. The trouble with enemas as frequently as this is that they can cause you to become dependent. Some people only have them to relive constipation or otherr symptoms. Personally, I like to set aside one day a month to perform a series of enemas, one straight after the other. That way I can enjoy the benefits of a clean bowel/colon but without the risks of addiction.
Generally, about once a month using only warm water to maintain good colon health.
It is recommended that an enema be done once a month.