All About Thrombosed Haemorrhoids: In-Depth Overview Haemorrhoids, commonly known as swollen rectal veins, are enlarged veins in the anal area. When a blood clot forms inside one, it causes a thrombosed haemorrhoid—a debilitating condition affecting daily life. Below, explore the symptoms, causes, and solutions for thrombosed haemorrhoids. ### Definition of https://penzu.com/p/a234dc1147b87e61