Hello I am a 20 year old male, slightly overweight

Patient: Hello. I am a 20 year old male, slightly overweight. I sometimes suffer from strange bumps on my inner thighs that at first seem like they may be ingrown hairs. Recently I have grown a cluster of them that amass to be the size of my fist and is extremely painful upon touch. I have an image I could share. Do you have any idea what this could be?

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Hello I am a 20 year old ma...-1

Doctor: