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Published on: 7/14/2026
Perianal tumors are abnormal growths that develop near the anus, appearing as visible lumps or nodules in the surrounding skin. Common symptoms include rectal bleeding, pain or discomfort, itching, and noticeable changes in skin color or texture. These tumors can be benign, premalignant, or malignant, and an accurate diagnosis is essential for determining the right treatment path. Treatment options vary based on the tumor type and may include surgical removal, radiation therapy, chemotherapy, or a combination of approaches.
Because symptoms like lumps, bleeding, and pain can be caused by many different conditions—ranging from harmless to serious—identifying the possible cause early can make a meaningful difference in outcomes. Taking a free, instant, online symptom check can help you better understand what may be behind your symptoms and guide you toward the most appropriate next steps, whether that means monitoring at home or seeing a specialist promptly.
Reviewed for medical accuracy: 07/14/2026
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Submit your own QuestionA perianal tumor is a growth that forms in the skin around the anus. Sometimes, you might notice a lump that may be firm or change in shape, and there may be symptoms like pain, bleeding, itching, or changes in the skin's color and texture. In some cases, these tumors do not cause symptoms at first and are found during a routine exam. There are benign tumors that do not grow or spread, and there are premalignant or malignant tumors which can be more serious. The treatment options vary based on what type of tumor is present. For benign or premalignant tumors, doctors might choose to remove the lump with minor surgery. If the tumor is malignant, more specialized treatments could be needed, such as more extensive surgical removal, radiation therapy, or even chemotherapy. The choice of treatment depends on the size, type, and location of the tumor, as well as your overall health. If you notice any unusual changes near the anus, it is important to see a healthcare provider to get a full evaluation and the right treatment plan. You can start by using a free symptom checker to better understand your symptoms before your appointment.
(References)
Wietfeldt ED, Thiele J. Malignancies of the anal margin and perianal skin. Clin Colon Rectal Surg. 2009 May;22(2):127-35. doi: 10.1055/s-0029-1223845. PMID: 20436838; PMCID: PMC2780245.
Abbass MA, Valente MA. Premalignant and Malignant Perianal Lesions. Clin Colon Rectal Surg. 2019 Sep;32(5):386-393. doi: 10.1055/s-0039-1687835. Epub 2019 Aug 22. PMID: 31507349; PMCID: PMC6731115.
Tsai TY, Liao CK, Zhang BY, Huang YL, Tsai WS, You JF, Yeh CY, Hsieh PS. Perianal Basal Cell Carcinoma-A Systematic Review and Meta-Analysis of Real-World Data. Diagnostics (Basel). 2023 May 8;13(9):1650. doi: 10.3390/diagnostics13091650. PMID: 37175041; PMCID: PMC10178443.
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