There are many reasons for thinning hair at the hairspin, and it is not necessarily a precursor to baldness, but needs to be analyzed on a case-by-case basis.
Hair thinning at the hairspin may be due to genetic factors, resulting in less hair at the hairspin than elsewhere, a condition that cannot be changed later in life and is not a precursor to baldness. If it is due to physiological factors, such as in the metabolic process, the hair itself has a cyclical turnover function, this is also not a precursor to baldness. However, if the hair thinning is severe, centered on the hair spiral, and there is constant hair loss, and it is accompanied by more hair oil, it is likely to be caused by seborrheic alopecia, which requires attention and timely consultation with a hospital dermatologist for targeted treatment. Failure to intervene effectively may lead to further aggravation of hair loss and even baldness.
While undergoing treatment, patients should also ensure adequate sleep, eat more vegetables, fruits and beans as appropriate, and massage the scalp frequently to help the condition recover.