A boil on the skin full of pus which is tender to touch and red is color is called Skin Abscess. There are different types of boils like carbuncle, cystic acne, Hidradenitis suppurativa and Pilonidal cyst. Boils can happen due to many causes like infected or blocked sweat glands, ingrown hair, cut or breaks of the skin and above all infected acne. Although every person can develop this abscess but patients who are having weak immune system due to acute diabetes or kidney failure are more prone to have boils. Inadequate antibody production in the body tends to have this infection very quickly.