One cause may be from lack of mobility in wheelchair or bedbound people. A less usual cause would be from spinal cord inflammation giving faulty nerve signals to the rectum. You'll have to experiment a bit.
Mineral oil is the major lubricant laxative.
Also, you could get dehydrated if not also drinking plenty of fluids. These kind can habituate your colon to the point wheve you MUST use a laxative to go. There are still others, used for medical treatment and all needing a perscription. Instead try some natural laxatives like apple or prune juice, rhubarb, or plenty of heathy raw vegetables. Return to Main Article Article complete.