Inflammation of the apocrine sweat gland-bearing areas leads to painful and repeated lumps of pus (boils or abscesses). Suppuration means formation or discharge of pus. These areas (commonly the armpits and groin) leak pus and are difficult to heal. Eventually, scarring occurs. There are cases of lesions appearing on the back, neck and scalp. If left untreated for too long, it can lead to staph or MRSA infections, squamous cell carcinoma, cellulitis, or sepsis.