Rathke's pouch cyst
Rectal prolapse
Pyelonephritis
Pyometra
Pyrexia of unknown origin ( Fever of unknown origin; PUO/FUO )
Pyrexia of unknown origin (PUO)
Pyruvate kinase (PK) deficiency
Pythiosis
Rabbit (Shope) fibroma virus infection
Rabbit (Shope) Papillomavirus infection