Patients with post-concussion syndrome may experience hair loss, as the main causes of hair loss include endocrine disorders, malnutrition, psychological trauma, reduced vascular function, genetic factors, etc. Among these, genetic factors, psychological trauma, and endocrine disorders are most common. Although there is no clear evidence currently showing a causal relationship between concussion and hair loss, I personally believe that after a concussion, patients often experience symptoms such as headaches, dizziness, chronic anxiety, endocrine disorders, chronic malnutrition, and poor sleep, which might accelerate hair loss to some extent.