What could possibly cause a big hard lump on the inner thigh

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What might cause an inner thigh lump? - Quora

Why do I have a lump on my inner thigh when I push through my fat? Why is it causing a small thin, stretched out depression on my internal thigh? - Quora

NSFW(?) Help please. I have this boil/lump just near my inner thigh and it hurts like crazy. What can I do to get rid of it? (ignore the white stuff, I put

HS Symptoms & Pictures

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Why do I have a lump on my inner thigh when I push through my fat? Why is it causing a small thin, stretched out depression on my internal thigh? - Quora

How to get rid of the persisting hard lump after gyno surgery - Quora

A lump on the hip Cleveland Clinic Journal of Medicine