i have an uncle who is a kidney patient.he needs a donor .

As far as I know he needs to on dialysis, if he isnt already,(if his kidneys are pretty bad he should already be undergiong regular dialysis treatments), and his doctors should put him on a transplant list. You can even ask family members with healthy kidneys if they are willing to donate, its sometimes easier to test family members first because their genetics might make it easier to find a match, witch finding a match can take years.