Understanding Thrombosed Haemorrhoids: Everything You Should Know Haemorrhoids, also known as swollen rectal veins, are inflamed veins in the anal area. When a blood clot forms inside one, it leads to a thrombosed haemorrhoid—a disruptive condition requiring attention. Below, explore the signs, causes, and solutions for this painful condition. ### https://www.zupyak.com/p/4593967/t/what-are-thrombosed-haemorrhoids-or-piles