Hi, I m 24, I ve been suffering from piles / heamorroids for 8 years, I never seek any treatment from any doctor, I just use painkillers like tropofeen. The color of stool is dark brown it s sousage type lumpy mass in pieces, sometimes it s diarrhea the color is still too dark, it s always painful to pass stool but I ve done nothing about it since I m habitual to it, and never used medicine for it. I feel bowel movement pain, there are piles on all the sides of outer colon. I m worried will it turn into cancer as I have never sought for any proper treatment. My routine is to sit for 10/24 hours and study, is it bad for me to sit for so long? Did I get piles because of sitting the pressure that exert on my back? It my disease curable?