Which parasite causes lymphedema?

Filaria. Lymphatic filariasis is caused by the worms wuchereria bancrofti, brugia malayi, and brugia timori. Subcutaneous filariasis is caused by loa loa (the eye worm), mansonella streptocerca, and onchocerca volvulus. Serous cavity filariasis is caused by the worms mansonella perstans and mansonella ozzardi, which occupy the serous cavity of the abdomen.
Wuchereria Bancrofti. Wuchereria bancrofti is the parasite which causes filariasis, which is the most common cause of lymphedema worldwide. The disease originates in mosquitoes which transfer the parasites to humans, leading to blockage of the lymphatic system. It is commonly found in the tropics and sub-tropics of africa, asia, the western pacific, and parts of central and south america.