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very solid, hard bump under the skin of my lower back?

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Hi, i really am not sure as to what i have, but its a very solid, hard bump under the skin of my lower back (my left side). Its behind my pelvis, and i checked my right side to see if its something normal, but i dont have it on that side. can you tell me what i have? another thing, i dont think its visible on the outside, you have to feel it to know its there.

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replied April 26th, 2012
Skin Answer A34288
Welcome to the ehealthforum. I am glad to help you out. From the description of the symptoms, it can be normal coccyx that you have felt of a small cyst or swollen lymph node. Exact diagnosis can only be made by an examination, CT scan and maybe a biopsy of the area.

Lymphadenopathy (swollen lymph nodes) is usually caused by a viral or bacterial infection. Other causes include allergic reactions, arthritis, cancer, and an overactive thyroid (hyperthyroidism). I suggest you to get this lump examined from a physician.

It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care.

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