A bathroom is called "une salle de bains" in French (assuming you think of having a shower or brush your teeth). If you use 'bathroom' as a synonym of 'loo', it is called 'les toilettes' (fem. plural).
We call it the bathroom faucet.
"Bathroom" in English is (il) bagno in Italian and (la) salle de bains in French.
Washroom in french is "les toilettes" (the bathroom).
What will you do if a child met accident in the bathroom
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European.
bathroom in French is salle de bains
Les toilettes are the loo, the bathroom in French.
The word bathroom is "salle de bains" in French. This is when you ask for the room where you shower and wash. If you're asking about the bathroom in the eupehemistic sense of loo/toilets/johns, that would be "les toilettes".
A call of nature is a euphemism for the urge to visit the bathroom.