White Spots on Fingernails: Causes and Concerns

Q: White Spots on Fingernails: Causes and Concerns

Dear Dada： If there is a white spot at the base of the nail and it is only on one nail, it is unlikely to be a nutritional deficiency in a young person. <br>If it is not due to water pollution, it is most likely a fungal infection. <br>Please monitor whether the area has expanded

Nail issues?

Hello Doctor: I would like to ask why there are white spots appearing under the nail of my right index finger, while none of my other nails have this issue.
Could it be a sign of a problem with an organ in my body or a deficiency of some kind? I would appreciate your help in answering this.
Thank you!

Dada, 20~29 year old female. Ask Date: 2010/03/15

Dr. Du Zhiqiang reply Dermatology

Dear Dada: If there is a white spot at the base of the nail and it is only on one nail, it is unlikely to be a nutritional deficiency in a young person.
If it is not due to water pollution, it is most likely a fungal infection.
Please monitor whether the area has expanded within three months and if there is any roughness in the nail plate.
It is essential to seek diagnosis and treatment from a dermatologist.
Wishing you peace and health.
Sincerely, Dr.
Du Zhi-Liang, Director of Dermatology, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2010/03/15

More Info

White spots on fingernails, medically known as leukonychia, can be a common concern for many individuals. These spots can appear for various reasons, and understanding their causes can help alleviate any worries about underlying health issues.

One of the most common reasons for white spots on nails is minor trauma or injury to the nail matrix, which is the tissue under the base of the nail. This trauma can occur from activities such as nail biting, aggressive manicuring, or even accidentally hitting the nail against a hard surface. The white spots typically appear a few weeks after the injury, as the nail grows out, and they often resolve on their own as the nail continues to grow.

Another potential cause of white spots is an allergic reaction, particularly to nail polish, nail hardeners, or other nail care products. If you have recently changed your nail care routine or used a new product, this could be a contributing factor. In such cases, discontinuing the use of the product may help resolve the issue.

Nutritional deficiencies can also lead to changes in nail appearance, including white spots. Deficiencies in zinc, calcium, or protein can affect nail health. However, it’s important to note that isolated white spots on a single nail are less likely to indicate a systemic deficiency and are more often related to localized trauma or irritation.

In some cases, white spots can be associated with fungal infections or other dermatological conditions. However, these conditions typically present with additional symptoms, such as discoloration, thickening, or changes in the texture of the nail. If the white spots are accompanied by these symptoms, it may be advisable to consult a dermatologist for a thorough evaluation.

If you are concerned about the appearance of the white spots on your fingernail, it is always a good idea to monitor the situation. If the spots persist, change in appearance, or if you experience any pain or discomfort, seeking medical advice would be prudent. A healthcare professional can provide a proper diagnosis and recommend appropriate treatment if necessary.

In summary, while white spots on fingernails can be concerning, they are often benign and related to minor trauma or irritation. Maintaining good nail hygiene, avoiding harsh chemicals, and ensuring a balanced diet can help promote healthy nails. If you have any ongoing concerns or if the condition worsens, do not hesitate to reach out to a healthcare provider for further evaluation and peace of mind.

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