What causes complete hair loss?
The main causes of hair loss include physiological hair loss and pathological hair loss.
1. Physiological Hair Loss
In the case of physiological hair loss, after the age of 20, everyone experiences more shedding than regrowth, leading to an overall reduction in hair volume. This is a normal physiological process that everyone undergoes. By age 30, the average person's hair loss approaches half compared to before age 20, prompting many individuals to seek medical consultation. However, this type of physiological hair loss does not require treatment—as long as there is no明显 thinning compared to peers, it is considered normal. Postpartum hair loss also falls under physiological hair loss and does not require treatment.
2. Pathological Hair Loss
One type of hair loss is associated with excessive sebum production; oily skin may lead to increased hair shedding. In men, if hair loss is accompanied by oily scalp and balding, it is considered pathological hair loss. This condition can be treated with the anti-androgen medication finasteride, also known as Propecia. Taking it for several years can help maintain existing hair, although it cannot regenerate lost hair. Therefore, early initiation of treatment is recommended to prevent further hair loss. Another type of hair loss appears in patches and is called alopecia areata.
Choose a suitable shampoo, avoid scratching the scalp vigorously to prevent worsening inflammation, and maintain a light, balanced diet.