The white half-moon on the fingernail has disappeared
The disappearance of the white half-moon (lunula) on fingernails may be a normal physiological phenomenon, or it could result from pathological causes such as malnutrition or endocrine disorders. In most cases, this condition can be improved by adjusting diet and daily routines. Specific details are as follows:
I. Normal Physiological Phenomenon
During the natural growth process of nails, the disappearance of the white lunula is common. If the nail color remains normal, this is generally considered a normal variation and does not require treatment.
II. Pathological Causes
1. Malnutrition
Long-term picky eating may lead to malnutrition, causing abnormal changes in the nails. Symptoms can usually be improved by adjusting the diet and increasing intake of protein- and vitamin-rich foods.
2. Endocrine Disorders
Chronic sleep deprivation or prolonged emotional depression may disrupt the endocrine system, leading to hormonal imbalances and the disappearance of the lunula. Adjusting sleep patterns and managing emotional health can help alleviate these symptoms.
Additionally, conditions such as hypothyroidism, vitamin deficiencies, and trace element deficiencies may also cause nail abnormalities. It is recommended that patients seek medical evaluation and receive appropriate treatment based on their specific diagnosis.