Tobiano

Individual horses vary, and additional pattern genes can alter the classic appearance.

• White commonly crosses the topline between the withers and tail.
• Patches often look rounded or vertically arranged.
• The head may be mostly dark with ordinary face markings.
• Legs are often white below the knees or hocks.
• Mane and tail may be mixed or two-colored.

Overo, frame, splash and sabino

Breeding decisions involving frame overo require informed genetic testing and veterinary guidance because two copies of the responsible variant are associated with lethal white overo syndrome.

• Overo is often used as an umbrella term in some registries and barns.
• Frame overo commonly creates irregular side patches that do not cross the topline.
• Splash patterns can look as if the horse was dipped in white from below.
• Sabino expression can include high white legs, face white, roaning, and irregular edges.
• Genetic testing is important because appearance alone can be misleading.

Tovero and mixed patterns

A single side view rarely tells the entire color story.

• Tovero describes visible characteristics of both tobiano and overo-type patterns.
• One horse can carry multiple spotting or white-pattern variants.
• Roaning, ticking, and seasonal hair can soften pattern boundaries.
• Registry terminology may not map perfectly to laboratory gene names.
• Photographs should include both sides, the face, legs, belly, and topline when documenting pattern.

Grooming and skin care

Pattern does not change the fundamentals: clean skin, sound feet, comfortable tack, hydration, nutrition, and daily observation.

• Check pink skin for sun sensitivity, especially around the face and muzzle.
• Use clean tools to keep dark and light areas clear.
• Inspect white areas for rubs, scabs, hair loss, and irritation.
• Fit masks, sheets, boots, saddles, and girths carefully.
• Ask a veterinarian about painful, spreading, draining, or rapidly changing skin lesions.

Frequently asked questions