Other causes could be abdominal tumors, liver disorders and high blood pressure. Chronic constipation invariably is the major cause of piles as the need to strain usually arises because waste product of low fiber foods creates small hard stools. These injure the mucous lining of the arms as they pass through. They do not pass easily and nearly every act of defecation can put a damaging strain on the anus. By and large pain or bleeding associated with passing stools is thought to be piles but it is not always so.
Ulcerative colitis is also another cause.
It could also be like a smear of bright blood on the paper at the end of defecation. Dark blood, clots, profuse bleeding and blood mixed with stools usually suggest that the bleeding is coming from higher up and not from piles. Avoid alcohol, tea, coffee and very spicy food Drink at least 8 glasses of water daily preferably non-refrigerated. If your life style is sedentary include some exercises in your daily routine. Attend to nature's call daily and do not postpone the urge to defecate, but do not sit for too long in the toilet.