Horse Colic: Types, Welfare Impact, and Prevention

Colic is the leading cause of death in horses and encompasses many distinct conditions requiring urgent veterinary assessment and careful ongoing prevention.

Key Facts

Colic is a general term for abdominal pain in horses; it has over 70 distinct underlying causes
Simple spasmodic colic (gas or spasm) is the most common and often resolves with minimal intervention
Surgical colic (displacement, torsion, strangulation) is a medical emergency with mortality rates up to 50% without surgery
Diet changes, limited water intake, stress, reduced gut motility, and parasites are common colic risk factors
Horses evolved for continuous low-level grazing — any departure from this feeding pattern increases colic risk
Impaction colic is particularly common in winter when horses drink less water and consume dry forage
Post-surgical colic horses may face complications including adhesions that reduce long-term quality of life
Regular deworming, dental care, and consistent feeding schedules significantly reduce colic risk

Welfare Considerations

Colic is one of the most feared welfare emergencies in equine care because it is painful, unpredictable, and potentially fatal. A horse experiencing severe colic is in acute distress — rolling, pawing, looking at flanks, refusing to eat — and every minute without appropriate treatment matters. Owners who delay calling a veterinarian out of hope that it will resolve, or due to cost concerns, risk allowing a manageable condition to become fatal. Prevention is both kinder and more cost-effective than treatment. Feeding management — access to pasture or ad lib hay, consistent schedules, slow introduction of new feeds — dramatically reduces risk. Understanding the many faces of colic, from mild discomfort to surgical emergency, helps owners make better decisions for their horses.

What You Can Do

Learn to recognize colic signs: pawing, rolling, sweating, elevated heart rate, absence of gut sounds
Call your veterinarian immediately if your horse shows colic signs — never wait to see if it resolves
Ensure horses have constant access to clean water, especially in winter and during hot weather
Transition to new feeds gradually over 7-14 days to avoid disrupting gut flora and motility
Maintain a consistent feeding schedule and provide forage as the dietary foundation
Implement a strategic deworming program with fecal egg counts to reduce parasite-related colic risk
Know the location of your nearest equine surgical facility in case emergency colic surgery is needed