"What Causes the Occurrence of Vitiligo on the Hands?"

There are various causes for the occurrence of vitiligo on the hands, commonly including genetic factors, endocrine abnormalities, traumatic stimulation, neuropsychiatric factors, and so on. Patients are advised to promptly visit a hospital for targeted treatment under medical guidance.

Non-Disease Factors

1. Genetic Factors: If both or one of the parents has vitiligo, the probability of their children developing vitiligo increases significantly;

2. Endocrine Abnormalities: Conditions such as hyperthyroidism and diabetes can damage melanocytes in the body, leading to white patches on the hands;

3. Traumatic Stimulation: If the skin on the hands is injured due to bumps or knocks, it may affect local melanocytes, reducing their synthesis and triggering this phenomenon;

4. Neuropsychiatric Factors: Prolonged stress or excessive pressure can affect hormone secretion in the body, disrupting hormonal balance and potentially inducing the disease.

Disease Factors

It can also be caused by a lack of trace elements, excessive sun exposure, etc., requiring analysis based on specific circumstances.

1. Lack of Trace Elements: Unbalanced diets can lead to malnutrition. Severe deficiencies in copper and zinc can hinder the normal functioning of tyrosinase, preventing melanocytes from producing melanin, ultimately leading to vitiligo;

2. Excessive Sun Exposure: Prolonged outdoor activities without proper sun protection can expose the skin to intense UV radiation, inhibiting the metabolism and proliferation of melanocytes, resulting in the aforementioned condition.

Apart from these relatively common causes, there are other potential diseases, such as systemic lupus erythematosus and scleroderma, that can also lead to this symptom. Patients need to undergo relevant examinations for a definitive diagnosis and then follow doctor's instructions for targeted treatment or management.