I have recurring constipation and have gotten piles thrice this year. gp keeps treating the piles or constipation but it just comes back. what can i do to stop this or what specialist can i see?

Must find the cause: Each person with constipation needs to be sure there is no other 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-with-water, polyethylene glycol, senna, milk of magnesia, other laxatives... A primary care or gastrointestinal doctor might try helpful meds such as Linzess.