Hi, I had gone through your question and understand your concerns. I dont think that constipation is related to those throa ulcers. Constipation may be caused by several other issues, however 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.