Published on: 3/17/2025
A lump inside the anus can be due to common issues like hemorrhoids, especially if a clot has formed, or less commonly, other causes such as an abscess or even a tumor. It is important to have it checked by a doctor if it is painful, persistent, or changing
There are several reasons you might find a lump inside the anus. One usual cause is a thrombosed hemorrhoid. Hemorrhoids are swollen blood vessels, and when a clot forms in one, it can feel like a hard lump and cause significant discomfort. Many times, these can be managed with simple care like warm sitz baths, over-the-counter pain medicine, and adjusting your diet to include more fiber. However, sometimes a lump could also indicate a perianal abscess, which is an infection that may need drainage by a doctor, or it may rarely be linked to a malignancy, which is a type of cancer. If you notice that the lump is very painful, it grows in size, or if you experience other symptoms—like bleeding or changes in bowel habits—it is important to see a doctor. A healthcare provider can examine the lump to determine its exact cause. Based on what they find, treatment could range from conservative management, such as home care for hemorrhoids, to surgical procedures if more serious conditions are discovered.
(References)
Greenspon J, Williams SB, Young HA, Orkin BA. Thrombosed external hemorrhoids: outcome after conservative or surgical management. Dis Colon Rectum. 2004 Sep;47(9):1493-8. doi: 10.1007/s10350-004-0607-y. Epub 2004 Aug 12. PMID: 15486746.
Boaz E, Freund MR, Harbi A, Dagan A, Gilshtein H, Reissman P, Yellinek S. Anorectal Malignancies Presenting as a Perianal Abscess or Fistula. Am Surg. 2023 Jun;89(6):2572-2576. doi: 10.1177/00031348221101481. Epub 2022 May 27. PMID: 35621130.
Bertagni A, Vagliasindi A, Ascari Raccagni A, Valmori L, Verdecchia GM. Perianal Bowen's disease: a case report and review of the literature [Perianal Bowen's disease: a case report and review of the literature]. Tumori. 2003 Jul-Aug;89(4 Suppl):16-8. Italian. PMID: 12903534.
Bardac OD, Baciu AB, Bogdan-Duică IS. Anal Metastasis from Lung Cancer: Report of a Case and Systematic Review of the Literature. Chirurgia (Bucur). 2020 Sept-Oct;115(5):681-689. doi: 10.21614/chirurgia.115.5.681. PMID: 33138907.
We would love to help them too.
For First Time Users
We provide a database of explanations from real doctors on a range of medical topics. Get started by exploring our library of questions and topics you want to learn more about.
Purpose and positioning of servicesUbie Doctor’s Note is a service for informational purposes, and the provision of information by physicians, medical professionals, etc. is not a medical practice. The provision of information by physicians, medical professionals, etc. is not a medical treatment. If medical treatment is required, please consult your doctor or medical institution. We strive to provide reliable and accurate information, but we do not guarantee the completeness of the content. If you find any errors in the information, please contact us.