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What does it mean when there are vertical lines on fingernails?

Oct 21, 2024 Source: Cainiu Health
Dr. Yang Ziqi
Introduction
In most cases, vertical ridges on fingernails may be caused by aging, genetic factors, malnutrition, nail fungus (onychomycosis), psoriasis, and other conditions. Treatments may include general management and medication. In daily life, maintaining a balanced diet rich in vitamins and minerals can help promote nail health and reduce the development of vertical ridges.

Generally, vertical ridges on fingernails may be caused by aging, genetic factors, malnutrition, onychomycosis (fungal nail infection), psoriasis, and other conditions. If discomfort occurs, it is advisable to seek medical attention promptly. Specific causes are analyzed as follows:

1. Aging

As people age, the growth rate of nails slows down and their texture may become more brittle, which can lead to the development of vertical ridges on fingernails. It is important to keep nails properly trimmed and regularly use nail polish or cuticle creams to maintain nail moisture.

2. Genetic Factors

If family members tend to develop vertical ridges on their nails, individuals may inherit this trait. Maintaining good personal hygiene and conducting regular nail health checks are recommended.

3. Malnutrition

A deficiency in nutrients such as calcium and vitamin A can impair normal nail growth and keratinization, resulting in vertical ridges on fingernails. Adjusting the diet promptly and increasing intake of nutrient-rich foods is advised.

4. Onychomycosis

Onychomycosis is usually caused by fungal infection. When fungi invade the nail, they disrupt its normal structure, leading to vertical ridges. This condition may also be accompanied by symptoms such as nail thickening and lifting. Patients are advised to follow medical guidance and use medications such as itraconazole capsules, terbinafine hydrochloride tablets, and ciclopirox olamine cream to alleviate symptoms.

5. Psoriasis

Psoriasis is typically caused by genetic and environmental factors. The immune system dysfunction associated with psoriasis can affect the nails, manifesting as vertical ridges on fingernails. Other symptoms may include red patches and scaling on the skin. Treatment under a doctor's supervision may include medications such as Xiaoyin Granules, methotrexate tablets, and compound glycyrrhizin tablets.

In daily life, maintaining a balanced diet, consuming sufficient vitamins and minerals, and taking care of nail health can help reduce the occurrence of vertical ridges.

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