I want to ask you about my dad...
43 years ago he had a operation on kidney.. since then he got some problems.. For past 8 years he lives with just 50% works one kidney... Month ago that 50% stop working.. so he was taken on temporary dialysis... he got 4 dialysis.. so his kidney start work... like 30-50% I'm not sure.. now his kidney works but he got diarrhea and temperature for days.. and not to forget doctors put him a catheter inside but seems its too down so he is leaking.. And my dad is 51 years old..

A fever is a sign of infection. Why isn't he telling all this to his doctor? Having had surgery on his kidney when he was only 8 years old is serious and more than we can really help with online. And I don't understand what the catheter being 'too down' means (or where it's located), so make sure he tells the doctor that too! If you can go to his next appointment with him and ask a lot of questions, that will help both of you be medically informed.

He tell everything to a doctors but nobody listen here. They just I think don't care. So I'm trying to find a best solution online. About catheter I don't really know how to explain.. I just know that they say that catheter is lowered or something like that... I don't know.. I can't go with him because even he can't ask anything... They won't explain...

Where in the world do you live?
Are you paying for health care, or is it free, or is it not free but you can't pay?
Is it an overcrowded clinic, or hospital? Would you say they give good care overall?

You still haven't even said where on his body the catheter is, and a catheter can be anywhere. 'Lowered' just is no help at all. You are going to HAVE to ask the doctors more questions yourself, which is proof that you do care!

Where in the world do you live?
Are you paying for health care, or is it free, or is it not free but you can't pay?
Is it an overcrowded clinic, or hospital? Would you say they give good care overall?

You still haven't even said where on his body the catheter is, and a catheter can be anywhere. 'Lowered' just is no help at all. You are going to HAVE to ask the doctors more questions yourself, which is proof that you do care!
If catheter is to empty his bladder, there are two types, condom catheter or an inline catheter. Condom catheters leak.