What Are Thrombosed Piles: In-Depth Overview Haemorrhoids, commonly known as swollen rectal veins, are enlarged veins in the rectal area. If a clot develops in a haemorrhoid, it leads to a thrombosed haemorrhoid—a disruptive condition affecting daily life. Below, explore the signs, triggers, and treatment options for this painful condition. https://penzu.com/p/a234dc1147b87e61