Hi there. Thank you for posting your question with Healthcaremagic. I will do my best to help you.
You father may have a urinary tract infection
or even a post op infection. This needs to be taken seriously. He will probably need an antibiotic and really needs to see a doctor.
I hope that I have answered your questions fully and been of some help. If you have anymore questions please contact me again anytime.
Dr Andrew Rynne.