After an operation, a cat woke up to the shocking realization that it had lost its testicles.

Six-month-old Milo who was induced with an anesthetic screamed at his loss as it’s owner John Reed captured the moment on camera.

Milo kept starring in the hope that its testicles would re-appear.

"He took about a good hour or so coming around. 'He looked down and realised they were missing and let out this almighty screech. He carried on looking down and staring for ages" the American owner said.