The master bedroom is by its very nature one of the most important rooms in the entire house. A lot of planning and forethought typically goes into this particular room, and since many well thought out master bedrooms have a bathroom built right into it, it stands to reason that a good deal of planning has to go into designing the master bathroom as well.
But you do not have to design your master bathroom from scratch. In fact, it might help tie in the two rooms together if you plan your bathroom design to conform to the existing look of the bedroom. Whether your master bedroom follows a traditional design or if it is more contemporary in feel, the bathroom should reflect this theme as well. It wouldn’t do at all to have a cosy and intimate bedroom that leads into an ultra modern almost minimalist bathroom! The effect would simply be too jarring. Of course in this day and age of the anything-goes design aesthetic, you are free to do as you please. Just keep in mind that your decision is borne out of intent rather than a case of simply not knowing what to do.
Stand outside the bathroom and look at what you see through the door into the bathroom. Do you see an inviting foyer that is attractive to look at or do you see a pile of clothes on the floor and an unflattering toilet? Always strive for a total overall look whether you are in the bathroom or the bedroom. It might be best to situate less appealing visual elements further into the bathroom where they cannot be seen from the outside.