Purulent: Pertaining to pus. Containing or composed of pus. The term "purulent" is often used in regard to drainage. For example, gonorrhea in men usually causes a purulent discharge from the penis. QUESTION What causes tooth decay? See Answer From Healthy Resources 10 Rheumatoid Arthritis SymptomsWhat Is Exocrine Pancreatic Insufficiency?Common Health Conditions Among Minorities Featured Centers Good and Bad Foods for PsoriasisVideo: Getting Personal on Life With MS Health Solutions From Our Sponsors Shot-Free MS Treatment Your Child and COVID-19