White spotting pattern
Frame overo creates irregular white areas mainly on the sides and belly. Colored hair often frames the topline, which gives the pattern its name.
A pattern with irregular white areas on the sides and belly that usually do not cross the topline.
Markings may have jagged edges, the topline usually remains colored, and the face often carries extensive white.
Frame overo is associated with an EDNRB variant. In the homozygous state it causes lethal white foal syndrome, making testing essential before at-risk matings.
The pattern is present from birth and remains broadly stable.
It can resemble splashed white or sabino. Lateral white and a usually colored topline are useful clues.
Explore the profiles of breeds in which this coat or trait is present or documented.
Discover the American Miniature Horse, an elegant and intelligent miniature horse under 86 cm tall, admired for its beauty and gentle temperament.
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The Paint Horse, an American breed recognized for its pinto coat and versatility, excels in western riding, leisure, and competitions.
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Discover the American Saddlebred, an elegant and expressive saddle horse, famous for its high-stepping gaits and iconic role in equestrian shows.
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Discover the Colorado Ranger, an American horse known for its versatility, strength, and the refined elegance inherited from its Arabian and Quarter Horse ancestry.
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Discover the Falabella, one of the smallest horse breeds in the world: docile, elegant, hardy, and native to Argentina. Used in driving and equine therapy.
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Discover the Irish Hunter, a sport horse from Ireland. Height 1.60–1.70 m, weight 500–600 kg. Athletic and versatile, it excels in eventing, jumping, and fox hunting.
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Discover the Mustang, America’s wild horse, a symbol of freedom and endurance, still roaming across the Western United States.
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Discover the North American Curly Horse, a hardy and hypoallergenic breed known for its unique curly coat, intelligence, and gentle temperament.
View profileMarkings may have jagged edges, the topline usually remains colored, and the face often carries extensive white.
The pattern is present from birth and remains broadly stable.
It can resemble splashed white or sabino. Lateral white and a usually colored topline are useful clues.
Visual examination is sometimes sufficient, but genetic testing can be useful when several coats look similar or when breeding decisions are involved.
