General information, not a diagnosis Method and limitations

Fact sheetParasite

Lymphatic filariasis

Lymphatic filariasis is transmitted by mosquitoes. Parasites can damage the lymphatic system long before visible swelling occurs.

Documentary Enrichment: · General information

Essentials

Neglected tropical disease transmitted by mosquitoes and likely to cause lasting damage to the lymphatic system.

Agent
Wuchereria bandrofti and Brugia spp.
Transmission or exposure
Vector

Situation and vulnerability

Infection is often acquired during childhood in the transmission zone. The absence of swelling does not exclude infection or internal damage.

Signs and limits of their interpretation

Chronic forms can cause swelling of the limbs, thickening of the skin or hydrocele. Acute inflammatory episodes, sometimes linked to secondary bacterial infections, may be added.

Diagnosis and monitoring

Swelling alone does not confirm the parasitic cause. The history of residence, examination and evaluation of infection and its consequences guide care.

Official sources consulted on . Documentary summary, without medical rereading.

Check these benchmarks in the WHO reference →

Prevention and care

Prevention includes mosquito protection and local treatment programs. Lymphedema requires continuous skin care and appropriate measures; hydrocele may be the subject of surgery.

Practical issues

Is the treatment of infection sufficient to remove lymphedema?

The control of the parasite and the care of chronic lesions are complementary. WHO insists on sustainable access to lymphedema care; old swelling may require continuous management.

Preparing for an exchange with a professional

  • Residences and stays in transmission area
  • Start of swelling and painful episodes
  • Skin care and treatment received

Bring the full minutes and dates. This information facilitates evaluation; its collection must not delay an urgent appeal.

Individual decisionThe choice of a test, treatment or prevention depends on the local situation and recommendations. In case of distress, call 911.
A neatly installed mosquito net around a bed in a bright room. AI-generated illustration.
Prevention illustration — Filariose lymphatique — A neatly installed mosquito net around a bed in a bright room.
Image generated by artificial intelligence. AI illustration; it does not depict a disease, biological agent or diagnosis.

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Related fact sheets

These sheets share ways or contexts of exhibition in our catalogue. This reconciliation does not establish a differential diagnosis.

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Further reading

These publications help you verify the concepts discussed. Disease records and directory entries each identify their sources.

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