Mastitis

Mastitis is the inflammation of breast tissue. The popular misconception that mastitis in humans is an infection is highly misleading and in many cases incorrect. Infections play only a minor role in the pathogenesis of both puerperal and nonpuerperal mastitis in humans and many cases of mastitis are completely aseptic under normal hygienic conditions. Infection as primary cause of mastitis is presumed to be more prevalent in veterinary mastitis and poor hygienic conditions.

Boils

Boil (or furuncle) is a skin disease caused by the infection of hair follicles, resulting in the localized accumulation of pus and dead tissue. Individual boils can cluster together and form an interconnected network of boils called carbuncles.