SZEGED, Hungary (WFLA/NBC) – A tiger in a Hungarian zoo received stem cell treatment to alleviate his pain.

A 13-year-old Siberian tiger named Igor has been suffering from hip pain for years.

Doctors hope that the treatment will help Igor get better and live happily without needing painkillers.

Stem cell treatment is used more widely on humans than animals.

It treats injured joints with tissue taken from patients’ own fat deposits, which contain regenerative stem cells.

The cells are injected back into the ailing joints.

It will take three weeks for veterinarians to judge if the producer improves Igor’s condition.