<p> <i><span lang="FR" style="font-size: 12pt; line-height: 115%; font-family: Arial, sans-serif;">Larvae that migrate in the skin or moving larvae are a common skin disease in the tropics described more than 100 years ago. Cause may be due to cutaneous larva migrans of some nematode such as Ankylostoma braziliense, Ankylostoma caninum, Gnathostoma spinigerum or Strongyloides stercoralis. Larvae that migrate are characterized by erythema, sinus-like, itchy and subacute scabies due to accidental penetration and movement of nematode larvae. Most cases of cutaneous larva migrans are found in the tropics, including the tropics, including Vietnam. The case reported here is a pediatrician, 2 year old boy living in Thu Dau Mot Town, Binh Duong Province, the patient visited the Clinical Department of Tropical Disease Hospital with the image on the skin with red, like a snake crawling, about 3.5 cm long, the end of this line has a short black. Human hair fragments penetrating the skin may produce a variety of different clinical pictures, one of the most peculiar of these resembles larva migrans. Clinicians should examine and analyze the specimen carefully to treat in time</span></i></p>