Hi, I had gone through your question and understand your concerns. In most cases, causes of and bleeding through rectum is irritation of rectal mucosa due to hard soon and straining. Other causes are mostly benign and include hemorrhoids, anal fissure or rectal polyps. These are primarily treated with stool softener, diet and sitzbaths. If there is no improvement in next few weeks, then surgical management should be considered. To treat constipation you should try first with changing lifestyle and dietary habits. You need to increase fiber intake. Good fiber sources include bran and other whole grains found in cereals, breads, and brown rice, vegetables such as brussels sprouts, carrots, and asparagus, Fresh fruits, or dried fruits such as raisins, apricots, and prunes Beans. Also, you should exercise regularly. Moving your body will keep your bowels moving, too. Second, you may at times need to try a laxative such as Fleet Phospho-Soda, Milk of Magnesia, or glycerin suppositories. If there wont be improvement on these measures, you should consider doing diagnostic tests such as colonoscopy, anal sphincter manometry and food allergy testing. In some cases it may be also sign of tumors so it should be ruled out if symptoms persist. Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health.