A Hospital is a unique type of room found in the Fortresses of both Kid Icarus and Kid Icarus: Of Myths and Monsters. A Hospital is defined by a gray background, which is usually out of a place, as well as the lack of enemies within them. Here, a Nurse will cure Pit of the Eggplant Curse, which causes Pit to endure being a walking eggplant/aubergine who cannot fight and can only dodge. The curse is caused by touching an eggplant, tossed by an Eggplant Wizard.
In Kid Icarus and Kid Icarus: Of Myths and Monsters, hospitals are found in fortresses where Eggplant Wizards are usually. A Hospital will remain a completely silent room if Pit enters them with a normal status, and the Nurse will appear only if Pit has been infected with the Eggplant Curse. Going to a Hospital is the only way to remove the curse.
In Kid Icarus: Uprising, if Pit is turned into an eggplant then he won't need to go to a Hospital. In fact, as Palutena rightfully says in Chapter 4, there are no Hospitals in this game; her power will remove the curse after a while. However, the curse sill prevents Pit from attacking during this time.