Bite wounds are relatively frequent, the order of frequency being, dog
s, cats and humans. The clinical importance of other types of bites de
pends on the severity of the injury or any subsequent infection. We re
port on the case of a woman bitten on her thigh by a horse, producing
severe haematoma, fat necrosis and muscle rupture, without an external
wound. We emphasize the importance of the ultrasound examination in t
he evaluation of the extent of the crush injury.