First off withholding is not very beneficial to a person's digestive health. As stool collects it hardens up as it sits in the intestines making it tougher to remove. Also it backs up a person.
Anal retention is common in young children. It is a control issue. A stool softener can be effective in preventing retention. Adults with the condition often have a psychiatric condition.
Constipation or haemorrhoids are common in all age groups. Constipation has no medical cause and changing of lifestyles is a remedy. If it is haemorrhoids treatment has to be taken
Don't hold your stool in. If you hold your stool in you could cause several problems in your body. It will probably cause you to get a stomachache and cramps. That is the least of the things that can happen.