What is Cutaneous Larva Migrans?
Cutaneous larva migrans (CLM), also known as creeping eruption, is a parasitic skin infection caused by the larvae of animal hookworms. The larvae penetrate the skin after contact with contaminated soil or sand, leading to intensely itchy, winding skin tracks. The condition is common in tropical and subtropical regions and is usually self-limiting but requires treatment to relieve symptoms.
Common Symptoms
* Intense itching, often worse at night
* Raised, red, winding (serpiginous) tracks on the skin
* Slowly advancing skin lesions
* Mild swelling around the affected area
* Scratching may lead to secondary bacterial infection
Commonly Affected Areas
* Feet
* Toes
* Legs
* Buttocks
* Hands
* Areas that come into direct contact with contaminated soil or sand
Common Causes & Risk Factors
* Walking barefoot on contaminated soil or sand
* Contact with beaches or playgrounds contaminated by dog or cat feces
* Gardening without protective footwear or gloves
* Living in or traveling to tropical and subtropical regions
Diagnosis
A dermatologist usually diagnoses cutaneous larva migrans based on the characteristic appearance of the skin lesions and a history of exposure to contaminated soil or sand. Laboratory tests are rarely required.
Prevention
* Avoid walking barefoot in areas that may be contaminated.
* Wear footwear on beaches and in parks.
* Use towels or mats when sitting or lying on sand.
* Practice good hand and foot hygiene.
* Ensure regular deworming of household pets.
When to See a Dermatologist
Consult a dermatologist if you develop an intensely itchy, creeping rash after contact with soil or sand, if the lesions continue to spread, or if signs of infection such as increasing pain, swelling, or pus develop.
Note: Cutaneous larva migrans is a treatable skin condition. Early diagnosis and treatment can quickly relieve itching, stop the progression of the larvae, and prevent secondary infection.
