If it helps you understand, I had a template biopsy under general anaesthetic. I was admitted at 8AM, had my procedure at 09:45, came round in recovery I think about 11:30AM. I had to pee a certain amount, which was easy for me. due to all the tea, coffee and water i kept getting presented with! I went home at 1:45PM. I just was not allowed to drive for a few days
Next day I went on a 120 miles trip (wife driving) to visit my daughter and my grandchild.
But I have to say, this was a perfect example. I must point out other circumstances to you;
If you cannot pee for any reason you will have to stay in, with possibility of a catheter if you still cant go.
Also some people can have an unexpected reaction to a general
Don't expect instant answers to the biopsy, in my case, it took 2 weeks till I got Oncologist appt and results.