Large feelingless bumps on thighs

I have developed a few bumps on my inner thighs during the last few days. The first was on my groin towards my butt. It swole to about the size of a marble before I noticed it, it popped almost immediately after I found it and released a yellowish white pus. Today I found another slightly larger blemish on my inner thigh. It is almost maroon in color that is lighter towards the top. I tried to pop it but only a small amount of blood came out. I then tried to drain it with a needle, even when i poked it I felt no pain at all in the bump, it is devoid of sensation. I'm very curious as to what this is

[Bhupinder Kaur, MD]

Hello,
These bumps on thigh could be due to boils, cold panniculitis, cysts or lipomas. Panniculitis is inflammation of the fat under the skin. The diagnosis is established by a skin biopsy. Boils are caused by infection of the hair follicle by staph aureus. A sebaceous cyst is a closed sac occurring just under the skin which contains a "pasty" or "cheesy" looking substance called keratin.

What exactly it is can be confirmed only after examination. 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 and please do keep me posted on how you are doing.