Hiccups Apr 2026

Hiccups - Digestive Disorders - Merck Manual Consumer Version

A hiccup is a sudden, involuntary muscle followed by the rapid closure of the vocal cords, which creates the distinctive "hic" sound . While most episodes last only a few minutes, they are classified by duration: acute (under 48 hours), persistent (2–60 days), and intractable (over 2 months). Key Features of Hiccups hiccups