What Do Those Ridges on a Horse’s Hooves Mean?
Sometimes you can see horizontal ridges on the hooves of horses or ponies. Many people worry that this indicates past laminitis. That can be true, but it doesn’t have to be. So what do these ridges really mean, and how can you get a smooth, healthy hoof wall?
Hooves
Welfare
15 December '25 • 1 min reading time
The hoof wall grows from top to bottom – from the coronary band just below the last hairs to the sole that touches the ground. It takes around 8 months to a year for a hoof to fully regenerate. Hoof growth problems remain visible for a long time, and improvements are often only noticeable at the bottom – sometimes only after a year. Patience is essential to improve hoof health.
Hoof wall movement
The hoof wall is 6–12 millimeters thick. The outer surface repels water but is not rigid; it is slightly elastic. When the hoof bears weight, the wall compresses slightly and expands again when lifted – this is called the hoof mechanism. It helps pump waste products away and keeps the hoof healthy.
Hoof wall growth
Hooves grow faster in summer than in winter. Nutrition is key: sufficient minerals like silicon and magnesium support even and healthy growth. Illness or stress can weaken the hoof wall and create horizontal ridges – growth rings that slowly move downward.
Role of nutrition
A common cause of horizontal ridges is excess sugar or starch in the diet. Metabolic issues weaken the white line, making the hoof wall more fragile. This can eventually lead to insulin resistance and laminitis, causing new ridges to appear. Nutrient deficiencies in vitamins or minerals can also create ridges.
Regular trimming and shoeing
Ridges can also occur if pressure is uneven, for example due to poor hoof alignment or overly long hooves. A healthy hoof wall is thick, smooth, free of cracks, frays or chips, and shows an unbroken white line.
Strengthening hooves from within
To improve hoof growth and strengthen the wall from the inside, liquid silicon can be added to the feed. It supports hoof growth, strengthens tendons, coat, and bones, and shows effects after about six months. For soft or sensitive frog areas, a hoof gel can help maintain frog health and protect the hoof from external damage.