What Causes White Spots on the Nails?

In daily life, many people notice white spots on their fingernails. Some mistakenly believe these white spots indicate an underlying disease. In fact, numerous factors can cause such spots. So, what exactly do white spots on the nails signify?

What Causes White Spots on Nails?

Common causes of white nail spots (leukonychia) include nail trauma, onychomycosis (fungal nail infection), and nail nutritional deficiencies. Trauma is the most frequent cause—this includes mechanical injury as well as chemical damage from common cosmetic procedures such as manicures and nail polish use. Typically, individuals with this condition have a history of trauma or nail enhancement treatments; careful observation and protective measures are usually sufficient. Additionally, zinc deficiency may also manifest as white spots on the nails.

It is advisable to visit a hospital for serum trace element testing—particularly to assess zinc levels. Fungal leukonychia (a type of onychomycosis presenting as white discoloration) is another common cause. Diagnosis can be confirmed via fungal examination of nail clippings. Treatment requires oral antifungal medication prescribed and supervised by a physician. There is no need for alarm upon noticing white spots; however, if the cause remains unclear, consultation with a dermatologist is recommended.

In daily life, it is beneficial to consume more fresh fruits and vegetables rich in vitamins to ensure adequate vitamin intake and prevent deficiencies that may contribute to health issues. Additionally, maintaining a balanced diet—including appropriate proportions of animal and plant-based foods—is essential. Regular outdoor physical activity and cultivating a positive, relaxed mindset also help reduce the risk of illness. We hope this information proves helpful to you.