Elephantiasis is gross enlargement of a limb or any organ of the body. There is an abnormal accumulation of watery fluid in affected part,in the tissues causing severe swelling(oedema). It may affect male or female genital organs. It is caused by Nematode Wuchereria bancrofti. Elephantiasis is variety of diseases, where parts of a person's body swell to massive proportions. Elephantiasis nostras, due to longstanding chronic lymphangitisElephantiasis tropica or lymphatic filariasis, caused by a number of parasitic worms, particularly Wuchereria bancrofti. More than 120 million people, mostly in Africa and Southeast Asia, are affected.