Hello, and I hope I can answer your question. Thrombosed hemorrhoids are very painful, I am sorry you suffer from this condition. Hemmorhoids are not a contraindication to vaginal delivery. In terms of pain, unless you tear very badly, it is unlikely that the birth would cause any additional discomfort to your anal area than anyone else. Epidural anesthesia will also help your anal pain. There are also many products for your comfort available in the hospital and you will feel much less pressure in your hemmorhoids once the baby delivers. I hope this information was helpful and that I answered your question adequately. Beat wishes, Dr. Brown