Each person has approximately 100,000 hairs on their scalp. According to the natural growth cycle, losing 50 to 150 hairs a day is a perfectly normal part of the body’s metabolic process.However, if you notice a significant reduction in hair volume over a short period, a steadily receding hairline, or new hair growth that is fine and brittle, these are often warning signs from your body. The condition of your hair serves as a mirror of your health, reflecting the body’s internal balance, and warrants serious attention and a timely professional diagnosis.
Autoimmune diseases, such as systemic lupus erythematosus, cause the immune system to mistakenly attack the body’s own tissues. On the scalp, this disease may present as circular red patches that, over time, gradually develop into scar tissue, leading to permanent damage to the hair follicles. If you experience an unusual red rash on your scalp accompanied by hair loss, it is recommended that you visit a rheumatology and immunology department as soon as possible for a comprehensive examination.
Elevated androgen levels caused by polycystic ovary syndrome alter the sensitivity of hair follicles to hormones, leading to the paradoxical phenomenon of scalp hair follicle atrophy and excessive hair growth on other parts of the body. In addition to gynecological treatment, patients with this condition are advised to follow a nutritional regimen that includes appropriate supplementation with B vitamins and trace elements such as zinc to help maintain hair follicle health.
Prolonged exposure to high levels of stress can lead to elevated cortisol levels; this stress hormone directly affects the normal functioning of hair follicle cells. Clinical observations have shown that stress-related hair loss is often most noticeable 2–3 months after a stressful event. It is recommended to establish a regular exercise routine combined with deep breathing exercises, as this can help improve blood circulation in the scalp and the supply of nutrients to the hair follicles.
Thyroid hormones act like the body’s thermostat, regulating the metabolic rate of cells throughout the body. Whether the thyroid is overactive or underactive, it can disrupt the rhythm of the hair growth cycle. When undergoing thyroid function testing, it is recommended to also check ferritin and vitamin D levels, as these nutrients work together to play a crucial role in maintaining healthy hair follicles.
The early symptoms of iron-deficiency anemia are often subtle, but the hair follicles on the scalp are particularly sensitive to a reduced oxygen supply. In addition to testing hemoglobin levels, it is recommended to monitor indicators such as transferrin saturation. Increasing your intake of dark green vegetables, red meat, and vitamin C in your daily diet can promote the absorption and utilization of iron.
Fungal infections of the scalp can cause well-defined, circular patches of hair loss, accompanied by mild flaking or redness. The diagnosis must be confirmed through dermatoscopy or a fungal culture. In addition to using antifungal medications, keeping the scalp dry and avoiding the sharing of personal hygiene items are important preventive measures.
In your daily diet, focus on consuming foods rich in high-quality protein, such as fish, soy products, and eggs, while also ensuring an adequate intake of omega-3 fatty acids and antioxidants. When choosing hair care products, opt for those that cleanse gently to avoid over-stimulating the scalp. Regular scalp checkups can help detect subtle changes in the hair follicles at an early stage.
If hair loss persists for more than three months or is accompanied by other symptoms, it is recommended that you consult a dermatologist for a comprehensive evaluation. Through professional diagnostic tests, such as blood tests and scalp examinations, the underlying cause can be identified and a personalized treatment plan developed—the only way to truly address the root of the problem and restore healthy, voluminous hair.