Can vitamin D deficiency cause hair loss?
Generally, vitamin D deficiency may lead to hair loss. The detailed analysis is as follows:
Vitamin D is an important nutrient that helps maintain scalp health and promotes hair growth. It also plays a role in calcium absorption in the body. In children, vitamin D deficiency or impaired calcium absorption may result in calcium deficiency, leading to symptoms such as night terrors and hair loss at the back of the head—commonly known as "枕秃" (baldness at the occipital region). Mild cases can initially be managed through lifestyle adjustments and observation, such as increasing sun exposure to promote natural vitamin D synthesis. If no improvement occurs, medical treatment under a doctor's guidance should be considered, including taking vitamin D supplements.
In addition, hair loss may also result from scalp infections. Bacterial or fungal infections on the scalp can attack hair follicles, potentially causing hair shedding. Individuals experiencing severe hair loss should promptly visit a hospital for examination to determine the underlying cause and receive appropriate treatment. Patients should pay attention to dietary habits in daily life, avoiding spicy, stimulating, and greasy foods, and consume more fruits and vegetables to ensure adequate intake of vitamins and trace elements.