Could These Symptoms Indicate Lipomas? Skin Lumps

Could these symptoms be indicative of a sebaceous cyst?

Hello, doctor.
Over the past year or two, I have developed 3 to 5 lumps (dispersed and not connected) under my armpits, above my collarbone, and on the inner sides of both arms.
When I pinch the surrounding skin, I can clearly feel a hard lump inside, about the size of a red bean, with a firmness similar to that of a bean and no elasticity.
It does not move and the larger ones can be seen protruding without touching.
The surface is smooth, with no wounds or blackhead-like openings, and they only slightly protrude or can be felt when pressed.
They are not painful during normal activities or when pressure is applied; I can almost say that I don't feel their presence unless I touch them.
My family members have suggested that these might be sebaceous cysts, but I have rarely seen information about lumps on the collarbone and inner arms.
I have a tendency to develop acne (oily skin) and would like to ask if the characteristics I described are consistent with sebaceous cysts.
Thank you.

Yura, 20~29 year old female. Ask Date: 2017/07/29

Dr. Wu Yuxin reply Dermatology

Without actually seeing the lesion, it is impossible to make a definitive diagnosis.
If you are very concerned, please seek medical attention as soon as possible.

Reply Date: 2017/07/29

More Info

Based on your description, it seems that you may be dealing with lipomas, which are benign tumors composed of fatty tissue. Lipomas are typically soft, movable, and painless lumps that can develop anywhere on the body, including areas like the armpits, upper chest, and inner arms, as you've mentioned. They are usually small, ranging from a few millimeters to several centimeters in size, and they feel doughy or rubbery to the touch.
The characteristics you've described—hardness similar to a red bean, non-movable nature, and the fact that they do not cause pain—align well with the typical presentation of lipomas. Unlike cysts (such as epidermoid cysts, which are often referred to as "粉瘤" in Mandarin), lipomas do not have a central opening or a "blackhead" appearance. Cysts can sometimes feel firm or hard as well, especially if they are inflamed or infected, but they usually have a distinct surface and can be more tender to the touch.

It's important to note that while lipomas are generally harmless, any new or changing lumps should be evaluated by a healthcare professional to rule out other conditions. For instance, some skin lesions can be indicative of other benign or malignant conditions, and a proper diagnosis often requires a physical examination and, in some cases, imaging studies or a biopsy.

In your case, since you have multiple lumps that are not causing discomfort, they may very well be lipomas. However, if you notice any changes in size, shape, or color, or if they become painful, it would be prudent to seek medical advice. Dermatologists or general practitioners can provide a thorough assessment and determine whether any treatment is necessary.
If these lumps are confirmed to be lipomas and they are not causing any issues, treatment is often not required. However, if they become bothersome or if you wish to have them removed for cosmetic reasons, surgical excision is a common and straightforward procedure.

In summary, while your symptoms are consistent with lipomas, it is essential to consult a healthcare provider for an accurate diagnosis. They can provide reassurance and discuss any potential treatment options if necessary. Remember, maintaining regular check-ups and being aware of any changes in your skin can help in early detection and management of any skin-related issues.

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