Written & medically reviewed by Dr. Sanjay Anbu, MBBS· Last reviewed
Lymphatic filariasis, commonly called elephantiasis, is a mosquito-borne parasitic infection that damages the lymph system and can cause severe swelling of the limbs. It is a major public-health concern in parts of India.
Many people carry the infection with no early symptoms
Tests & diagnosis
Blood test for the parasite (often collected at night)
Antigen test for filarial infection
Ultrasound to detect worms in the lymph vessels
Treatment & management
Anti-parasite medicines given through mass drug administration in endemic areas
Careful daily skin and limb hygiene to prevent flare-ups
Raising the limb, exercise and compression to reduce swelling
Prompt treatment of skin infections
Surgery for hydrocele in some cases
When to see a doctor urgently
Persistent or worsening swelling of a limb or the genitals
Repeated fever with painful, swollen glands
Skin that is breaking down or repeatedly getting infected
Living in an endemic area with any of these signs
Not a diagnosis. MedDroid gives general educational information about filariasis (lymphatic filariasis). It cannot examine you, diagnose or prescribe — always confirm with a qualified doctor.
Frequently asked questions
Can filariasis be prevented?
Yes — avoiding mosquito bites and taking part in mass drug administration programmes greatly reduce the risk. India runs national campaigns to eliminate it.
Is the swelling reversible?
Early swelling can improve with treatment and good limb care, but long-standing elephantiasis is harder to reverse — which is why early action matters.
Is filariasis contagious between people?
Not directly. It spreads only through infected mosquito bites, not from person to person.
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.