The San Diego Zoo Safari Park says the male cub, named Moka, had the operation Tuesday and appears to be recovering but he'll remain under observation.
The park says Moka had abdominal adhesions and recently had shown signs of ill health.
Moka was 6 weeks old when he was found on the floor of a car last August at a San Diego border checkpoint. Tigers are endangered and it's illegal to import them without a permit.
He was handed over to the park.
The driver, who'd claimed he bought the cub as a pet, was sentenced to six months in prison.