Mayo Clinic Care Network Content
Definitions

Charley horse


Overview

A charley horse is often due to long exercise or physical labor, especially in the heat. Dehydration, age, pregnancy, and certain medical conditions may increase the risk of charley horse.

Symptoms

A charley horse is harmless but can be very painful. It often awakens a person during the night.

Treatments

Massage can relieve cramping pain. Stretches and hydration during exercise or work can prevent a charley horse.