One poop removal, please
The original Enterprise definitely had bathrooms.
Poor Riker. Always running looking for a bathroom but never looking around him.
There was a bathroom on the bridge. Granted, it was originally a conference room but they repurposed it into a bathroom during the run of the show.
The more you know!
https://memory-alpha.fandom.com/wiki/Bathroom
The head was visible in a few episodes, but while the doorway was initially labeled “CONFERENCE” in “Gambit, Part II”, it was relabelled “HEAD” by “Emergence”. In addition, in episodes throughout the seventh season, multiple crew members can be seen simultaneously entering the bridge via the head. It is unclear how many toilets are available for use in the head on the main bridge.
I think the best part is that the really clear picture of it saying Head is from the interactive TNG Tech Manual which was narrated by Frakes. I love the idea that Frakes knew exactly where the bathroom was but Riker kept running around screaming to the transporter room for a “Number Ones number two emergency”.
I can’t find the exact timestamp but Jonathan Frakes does point out the single bathroom on the Enterprise D in the 1994 documentary “Journey’s End: The Saga of Star Trek — The Next Generation.”
But why would you use it when you can just use the holodeck? (crude humor warning)
My headcanon is that in public / guest quarters the toilet stalls contain miniature holodeck emitters so that they can instantly change to accommodate the customs / biology of any species. Even assuming that, say, Klingons excrete waste from the same places that humans do, they might prefer to do so while dangling from a bar in the ceiling or something else torturous like that, and find the use of a regular sitting toilet unclean or dishonorable.
