A hygienic apparatus includes a urinal, a toilet bowl, and a water-storing device including a housing body interconnecting the urinal and the toilet bowl, a water tank disposed in the housing body, a water-feeding tube allowing flow of water into the water tank therethrough. A drain tube unit is in fluid communication with the urinal and the toilet bowl. A flush unit includes a urinal-flushing tube in fluid communication with the water tank and the urinal, and a toilet-flushing tube in fluid communication with the water tank and the toilet bowl. A swivel mechanism includes a base, a vertical shaft disposed fixedly on the base and extending into an assembly of the urinal, the toilet bowl, and the water-storing device, and a driving unit operable to drive rotation of the assembly of the urinal, the toilet bowl, and the water-storing device relative to the base about the vertical shaft.