1. Acute  (Trust Mark: Doctor-Reviewed)
Acute means sudden or severe. Acute symptoms appear, change, or worsen rapidly. It is the opposite of chronic. • Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

2. Prostatitis - acute  (Trust Mark: Doctor-Reviewed)
Acute prostatitis is swelling and irritation (inflammation) of the prostate gland that develops suddenly.• Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Louis S. Liou, MD, PhD, Assistant Professor of Urology, Department of Surgery, Boston University School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.