a Lump on the Buttocks: Causes and Treatment Options - Surgery

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Could you please clarify if you have a lump in your buttock?


Hello Doctor: A few months ago (about 3 to 4 months), I noticed a lump the size of a ten-dollar coin on the inner part of my right buttock.
Since it is located in a fleshy area, it doesn't really affect my daily life, and it doesn't hurt when touched.
It feels like a solid blister, but I am sure it is not an acne lesion.
It is embedded in the skin and cannot be squeezed out.
The protrusion on my buttock is quite unsightly, and I feel very embarrassed.
I'm not sure which specialty I should consult.
Could you please advise me on how to handle this? Is surgery necessary, or can it be treated with aspiration? How long is the treatment period? I am preparing for pregnancy, so treatment would be quite inconvenient...
Thank you!

Tsai, 30~39 year old female. Ask Date: 2015/09/16

Dr. Xu Kaixi reply Surgery


Based on your description, this tumor is more likely to be a lipoma or a sebaceous cyst, both of which are benign tumors.
Surgical removal under local anesthesia is sufficient, and the recovery time from the procedure to full recovery is approximately two weeks.

Reply Date: 2015/09/16

More Info


When it comes to a lump on the buttocks, particularly one that has been present for several months and is described as firm and non-painful, there are several potential causes to consider. The lump could be a lipoma, which is a benign tumor made of fatty tissue. Lipomas are generally harmless and do not require treatment unless they become bothersome or painful. Other possibilities include sebaceous cysts, which can occur when a hair follicle becomes blocked, leading to a fluid-filled sac. These cysts can sometimes become infected, resulting in pain and swelling.

Given that the lump is not painful and does not affect your daily life, it may not require immediate intervention. However, it is essential to have it evaluated by a healthcare professional to determine the exact nature of the lump. You can start by consulting a primary care physician or a dermatologist, as they specialize in skin-related issues. They will likely perform a physical examination and may recommend imaging studies, such as an ultrasound, to assess the lump further.

In terms of treatment options, if the lump is diagnosed as a lipoma or a sebaceous cyst and is not causing any symptoms, your doctor may suggest a watchful waiting approach. However, if you wish to have it removed for cosmetic reasons or if it becomes painful, surgical excision is typically the most effective method. This procedure involves making an incision to remove the lump entirely. The recovery time for such a procedure is usually minimal, and many patients can return to their normal activities within a few days.

Alternatively, if the lump is a cyst and it becomes infected, your doctor may recommend draining it. This can often be done with a needle and syringe, which is less invasive than surgical excision. However, this method may not prevent the cyst from returning.

Regarding your concern about pregnancy, it is advisable to discuss your plans with your healthcare provider. If the lump is not causing any issues, it may be best to postpone any elective procedures until after you have given birth. If the lump requires treatment, your doctor can help you weigh the risks and benefits of proceeding with treatment during pregnancy.

In summary, while a lump on the buttocks can be concerning, many cases are benign and do not require immediate intervention. Consulting with a healthcare professional will provide you with the best course of action tailored to your specific situation. If treatment is necessary, options such as surgical excision or drainage can be discussed, keeping in mind your plans for pregnancy. Always prioritize open communication with your healthcare provider to ensure that you receive the most appropriate care.

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