I had a prolaps operation on apnow i have golf ball size stools cam it damage the succes off the operation it is very painful in my lower stomach ?

Question unclear but: Each person with constipation needs to be sure there is no major disease causing it. If constipation is just due to slow movement of the food and poop through the gut, then the things to try are vegetables, water, prune juice, prunes, fiber plus water, Miralax (polyethylene glycol) Senokot or other senna, milk of magnesia, other laxatives... A doctor can evaluate and prescribe helpful meds too.