: can dialysis patient go on a cruise do they have the facilities are important.?

You have to make arrangements ahead of time to rent the equipment and have it delivered to your cabin.  

Rarely, an organization will charter a specific ship( at a greatly increased cost over booking yourself) and they will do the legwork about getting facilities on board.  

You can if the ship has the facilities to support dialysis. You should check the Dialysis at Sea website for options: https://www.dialysisatsea.com/

Generally not; this is hugely specialised equipment. 

i would ask the people where youre getting the dialysis done