The door of the bathroom is locked, and the outside can be opened

Nowadays, some bathrooms will use locks without keyholes, in case there will be a groove in the position of the keyhole, first we find a horizontal screwdriver or a coin to insert into the groove, and try to open the door to the right. Here's how: >>>More

Find a professional lockpicker.

Some bathrooms have locks without a keyhole, but there is a notch in the original keyhole that can be opened by inserting a flathead screwdriver or coin into the recess and twisting it to the right.

Since it is an anti-theft door, it must not be, and after the anti-theft door is locked outside, you can only use a key to open it; Or some brands of high-end doors are locked on the outside, and you can't open it if you have a key inside, so you can only open it violently or ask the lock company.

This is a bit troublesome, my family really hasn't encountered this situation, but you can try to use a more solid thing such as a poster, along the keyhole on the glass door, open it to see if it can be opened, if you can't open it yourself, you have to ask a professional to open it for you, don't worry, it will definitely be opened, just ask them to break the bank.