Thinning hair is often due to heredity. However, malnutrition and health issues (such as thyroid disorder) can also cause hair thinning. Mental stress may even cause sudden hair loss. In addition, some medications may also lead to thinning hair.
If you have thin hair, you should avoid frequent shampooing. When using a shampoo, you need to focus on the scalp, not the hair. Then use a hair conditioner to moisturize the hair. If possible, let your hair dry naturally.
If you experience sudden hair loss, you should immediately see a doctor. If hair loss is serious, hair transplant surgery can be an option, and you need to consult a dermatologist.