What Are the Common Causes of Vertical Ridges on Fingernails?

May 23, 2021 Source: Cainiu Health

Dr. Liu Wan

Introduction

1. Physiological factors: In most cases, vertical ridges on the nails are a normal physiological phenomenon and generally do not require excessive concern. 2. Nutritional deficiencies: These are often associated with vitamin A deficiency; increasing intake of vitamin A–rich foods is recommended. 3. Pathological factors: Such as impaired liver function—often resulting from high work- and life-related stress combined with irregular eating habits.

Under normal circumstances, our nails are typically pink and have a smooth surface. However, some individuals may notice prominent vertical ridges on their nails—sometimes even visible to the naked eye—and these ridges may gradually increase in number over time. So, what causes excessive vertical nail ridges? Below, we address this question.

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Causes of Excessive Vertical Nail Ridges

1. Physiological Factors

In most cases, vertical ridges on the nails represent a normal physiological phenomenon and generally require no cause for concern. As we age, the skin’s ability to retain moisture declines, often resulting in facial wrinkles. Similarly, the nail plate’s moisture-retention capacity also diminishes with age. Consequently, vertical ridges appear much like facial wrinkles. As long as the ridges remain subtle—and there are no significant changes in nail color, texture, or contour—no intervention is necessary.

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2. Nutritional Deficiencies

Excessive vertical ridges often reflect a deficiency in vitamin A. Increasing dietary intake of vitamin A–rich foods—such as mung beans, rice, tomatoes, spinach, cherries, and longan fruit—may help alleviate this condition. Additionally, adequate sleep supports optimal nutrient absorption. Conversely, poor sleep quality leaves the body in a chronically fatigued state, potentially manifesting as dark circles, puffiness under the eyes, and more pronounced vertical nail ridges.

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3. Pathological Factors

Liver dysfunction, for example, may contribute to vertical nail ridges. Chronic work and life stress, combined with irregular eating habits, place increasing strain on the liver, impairing its ability to detoxify and eliminate metabolic waste. This accumulation of toxins may manifest as vertical ridges on the fingernails. Therefore, when such ridges appear, it is important to consider whether diminished liver or kidney function may be involved. Furthermore, insufficient qi and blood—leading to impaired circulation—can also result in vertical nail ridges. In such cases, timely medical evaluation is essential to prevent potential complications.

The above outlines the primary causes of excessive vertical nail ridges. We hope this information proves helpful.

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What Causes Vertical Ridges on the Nails?

Some individuals have vertical ridges on their fingernails, which may result from numerous clinical factors. The most common cause is longitudinal ridging (also known as nail ridges), though the precise etiology remains unclear. This condition is a frequent clinical manifestation of nail dystrophy and, in most cases, poses no significant threat to overall health. However, it may also indicate a deficiency in trace elements.