Good Morning, @nimalw. Welcome to Mayo Connect with a special Congratulations on your recent kidney transplant!
My combined liver/kidney transplant occurred 12 years ago, and I needed dialysis before my transplant because of acute kidney failure along with end stage liver failure. I can only remember immediately feeling better upon waking from the surgery , and relieved that I did not require anymore dialysis. I remember that my Creatinine level was normalized right away because my kidney doctor 'danced' into my room while singing "0.8" over and over. I am only one of many patients, so my situation is not representative everyone.
As for bladder retention, I did not experience any. I know this because when the catheter was remover, and I was on my own to pass urine, the nurse performed ultrasound bladder clearance scans. These are also performed annually as part of my routine annual evaluation.
At 2 months post transplant, and at any time and every time you are concerned/or just have questions, I encourage you to communicate with your transplant team. Did you transplant at Mayo? Are you registered on the patient portal? It is the perfect place to ask non emergency questions.

When do you have a follow-up with your transplant team?