Involuntary spasms of the diaphragm, usually short-lived and not a sign of something serious.

Common causes of this symptom

Hiccups can have causes that aren't due to underlying disease. Examples include drinking too fast, eating too fast, carbonated beverages, alcohol, smoking, or chewing gum.

Self-treatment

Although there's still no proven treatment for hiccups, breathing into a paper bag, holding your breath, sipping cold water, or gargling with ice water may be worth trying.

Seeking medical care

See a doctor if you

Get hiccups for two days or more. Have difficulty breathing, eating, or sleeping.