Lymphatic filariasis in darker-skinned individuals often manifests as swollen limbs or genitalia, a condition known as elephantiasis, which can lead to significant disfigurement. The infection, caused by filarial worms transmitted through mosquito bites, also causes lymphatic dysfunction, leading to fluid accumulation and painful swelling. Treatment typically involves a combination of anti-filarial medications, such as diethylcarbamazine (DEC), ivermectin, and albendazole, along with management of secondary infections and lymphatic health through hygiene and compression therapy.