Jigger Flea, Chigoe Flea, or Sand Flea

Natural Habitat

Found in tropical and sub-tropical climates (Caribbean, South America, sub-Saharan Africa). They thrive in warm, dry, sandy soil and dust, often in impoverished communities or around stables.

Diet & Feeding

Hematophagous (feed on the blood of mammals). Hosts include humans, dogs, pigs, cats, and rats.

Behavior Patterns

Unlike other fleas, the impregnated female burrows head-first into the host's skin (usually feet, under toenails, or between toes). She swells dramatically while feeding and releasing eggs through a small exposed pore, eventually dying and sloughing off with the skin.

Risks & Benefits

Significant Risk: Causes Tungiasis, an intensely itchy, painful skin inflammation. It can lead to secondary bacterial infections (gangrene, tetanus), loss of toenails, deformation of toes, and difficulty walking. No ecological benefits to humans.

Identified on: 2/20/2026