All About Thrombosed Haemorrhoids: A Complete Guide Haemorrhoids, commonly known as swollen rectal veins, are dilated veins in the anal area. When a blood clot forms inside one, it leads to a thrombosed haemorrhoid—a painful condition that hampers your routine. Below, explore the symptoms, causes, and solutions for thrombosed haemorrhoids. https://seosunnyagrawal.wixsite.com/my-site-7/post/what-are-thrombosed-haemorrhoids-or-piles