A jigger is a 1mm long flea. It lives in dirty conditions, such as soil and sand. It feeds on warm blooded hosts. When the female is breeding she burrows into exposed skin on the feet where she starts to incubate eggs. During the incubation, the skin swells dramatically, causing pain and irritation. If the flea is left within the skin, secondary infections can occur, along with loss of nails and toe deformation. When not treated the eggs develop and can spread to other parts of the feet, hands, arms and any part of the body.
Some children also die of jiggers. When the wounds are not cared for and the jiggers are left to spread, it can lead to more serious blood infections such as meningitis that cause death as often there is no urgency in treatment.