Hailey-Hailey disease was originally described by the Hailey brothers [Hugh Edward and William Howard] in 1939. It is a genetic disorder that causes blisters to from on the skin. The other synonyms of Hailey-Hailey is familial benign chronic, pemphigus. HHD is characterized by out breaks of rashes and blisters on the skin. Affected area of skin undergoes ruptured blistering and inflammation and may be painful to the touch. Area where the skin folds as well as armpits, groin, neck, buttocks and under the breasts are most commonly affected. Here, we discussed about the clinical and various differential diagnosis and treatment of HHD. Key words: Hailey-Hailey disease, familial benign chronic pemphigus, skin disease.