Leprosy also known as the Hansen’s disease, which is an infectious disease, caused by the bacteria Mycobacterium leprae or M. lepromatosis. Leprosy is a slowing developing and progressing disease that has adverse effect on nervous system and skin. Vulnerability of getting affected by Leprosy is due to some genes present on humans. Initial symptoms of Leprosy, being loss of sensation and gradually painless ulcers, skin lesions of hypo-pigmented macules, eye damage, etc. Leprosy treatment is possible with the use of antibiotics.