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Hidradenitis suppurativa (HS)
Hidradenitis suppurativa (HS) is a chronic skin condition featuring lumps in places such as the armpits or groin.
The skin lesions develop as a result of inflammation and infection of sweat glands.
This condition features pea- to marble-sized lumps under the skin that can be painful and tend to enlarge and drain pus. They usually occur where skin rubs together, such as in the armpits, groin and buttocks.
Medication, corticosteroid injections and sometimes surgery can help manage symptoms.