K64.2: Third degree haemorrhoids

Third degree haemorrhoids are a medical condition that refers to enlarged, bulging blood vessels in and around the rectum and anus. Unlike first- and second-degree haemorrhoids, which remain within the rectum, third-degree haemorrhoids will protrude, or move out from the anus, usually during bowel movements. However, unlike fourth-degree haemorrhoids, they can be manually pushed back into place. Common signs and symptoms of third degree haemorrhoids often include discomfort, bleeding, itching, and swelling around the anal region. Pain can occur if the haemorrhoid thromboses, or forms a clot. The condition is believed to occur due to increased pressure on the lower rectum such as from constipation, straining during bowel movements, sitting for long periods of time, or due to pregnancy. The lining of the veins becomes stretched and irritated with the increased pressure leading to the development of haemorrhoids.