@I tell him he's stinky in a joking way and say that we can go out once he showers, etc. That motivates him even if he does grouse at me.

@CheryRice. I think some do not like feeling exposed. Try getting one arm undressed and wash that arm and cover that side up with a big towel. Then expose the other arm and wash that side. Then you can have him dress his upper half. Tell him exactly what you are doing for each step, but don’t go beyond that step. If he has a top the needs to be pulled over his head, then maybe take it off but keep one side covered while you wash the other side. Even if you just get the top half done you can work on the bottom half the next day, might be worth a try. Good luck

I agree with everything I have read in these posts. Getting mom to shower is hard...I have everything ready before she gets in the shower....spray warm water on the floor tile, spray the shower seat and have her towel and terry towel robe ready..Let her test the water on her feet.....and did I mention...I hope for the best?

I haven't had this problem yet, but I am waiting as it is usually a major issue sooner or later. So far, my husband is willing to take a shower at least every other night, without any problem. I can usually tell when he is extra tired and wants to skip a night. I have been willing to go along with it and he usually takes about five showers a week. He is good about changing clothes each day or every two days at the latest. I don't have trouble with him brushing his teeth as he was a dental tech for a short time serving in the Army. It was only for a few months as was called, "special duty."

If cajoling and patience don't work, and the person us defiant, they may need meds to calm them down.
This is a great question! Not an easy one to resolve.