Tungiasis

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It is a disease caused by a parasite known as Tunga penetrans, which infiltrates the skin of humans. This parasite is a sand flea that usually appears in warm, tropical regions of Africa, Latin America, the Caribbean and parts of Asia.

Tungiasis is caused by sand fleas penetrating the skin, usually when people walk barefoot on soil contaminated with the eggs of these parasites.

The most common symptoms include intense itching, swelling, localized pain and the formation of small nodular lesions on the skin, which can become infected if not properly treated.

Diagnosis is made by assessment of the skin lesions and the detection of the sand flea or its remains under the skin.

Treatment involves removal of the parasite with sterile needles and disinfection of the wound. In complicated cases, topical and/or oral antiparasitics may be used to treat the infection. It is essential to maintain good personal hygiene and avoid walking barefoot in areas prone to sand fleas to prevent future infections.

Bibliographic references
  1. Lederman ER, Weld LH, Elyazar IR, et al. Dermatologic conditions of the ill returned traveler: an analysis from the GeoSentinel Surveillance Network. Int J Infect Dis 2008; 12:593.
  2. Sanusi ID, Brown EB, Shepard TG, Grafton WD. Tungiasis: report of one case and review of the 14 reported cases in the United States. J Am Acad Dermatol 1989; 20:941.
  3. Matono T, Kato Y, Yotsu R, Ohmagari N. Tungiasis: diagnosis at a glance. Lancet 2016; 388:275.
  4. Abrha S, Heukelbach J, Peterson GM, et al. Clinical interventions for tungiasis (sand flea disease): a systematic review. Lancet Infect Dis 2021; 21:e234.
Author
Dra. Maria Eugenia Rodriguez
Copyright
© TeckelMedical 2026

Symptoms

    Whitish nodules with black center on the foot


    Inflamed nodules cause itching and pain


    Itchy foot


    Skin injuries due to scratching


    Pain in foot

Self-care

Wash the wound thoroughly with soap and water.
Avoid removing the parasite
Cover with a clean, dry compress.
Take over-the-counter pain relievers or anti-inflammatories.