Pathology
- Penicillium
- peptic ulcer
- Perforated eardrum
- Pericarditis
- Perinatal infection
- Periodic disease
- Periodontal diseases
- Peripheral Neuropathy
- Peripheral Vascular Disease
- peritonitis
- Pernicious Anemia
- Peroxisomal disorders
- Persistent Vegetative State
- Pertussis
- Pervasive developmental disorders
- petit mal
- Peutz-Jeghers syndrome
- Peyronies Disease
- Phantom Limb
- phenylketonuria