What causes severe hair loss in men?

Generally, the main causes of severe hair loss in men may include excessive stress, aging, seborrheic dermatitis, folliculitis, and alopecia areata. If discomfort symptoms occur, it is recommended to seek medical attention promptly and receive targeted treatment under a doctor's guidance. Specific analysis is as follows:

1. Excessive Stress

Long-term mental stress can trigger the body to release stress hormones such as adrenaline and cortisol, which may negatively affect hair follicles, causing them to prematurely enter the resting phase and accelerating hair shedding. This condition may also be accompanied by symptoms such as anxiety, insomnia, and indigestion. Practicing meditation, yoga, and moderate exercise in daily life can help regulate emotions and restore the body’s balance.

2. Aging

As men age, hormonal levels in the body may change, leading to aging of hair follicles and reduced hair growth capacity, resulting in severe hair loss. Other signs such as skin laxity and increased wrinkles may also appear. Maintaining a healthy lifestyle—including a balanced diet, regular exercise, and sufficient sleep—can help slow down the rate of hair loss.

3. Seborrheic Dermatitis

This is a common skin condition that may be related to fungal infection or impaired skin barrier function. Inflammatory irritation can lead to excessive scalp oil secretion, clogging hair follicles and disrupting the hair growth cycle, thereby causing significant hair loss. Symptoms may also include scalp itching, greasiness, and flaking. Patients may use medications such as hydrocortisone cream, itraconazole capsules, or econazole nitrate cream under the guidance of a healthcare professional.

4. Folliculitis

Folliculitis is usually an inflammation of the hair follicles caused by bacterial or fungal infections. When inflammation damages the follicles, normal hair growth may be disrupted, leading to hair loss. The scalp may develop red papules or pustules, often accompanied by pain and itching. Patients may follow medical advice to use medications such as mupirocin ointment, compound ketoconazole cream, or amoxicillin capsules to relieve symptoms.

5. Alopecia Areata

Alopecia areata is an autoimmune disorder potentially linked to factors such as emotional stress, lack of sleep, and endocrine imbalance. The immune system mistakenly attacks hair follicles, causing damage and hair loss. The skin in severely affected areas typically appears smooth. Patients may be treated with medications such as minoxidil gel, cyclosporine soft capsules, or clobetasol propionate cream under proper medical supervision.

In daily life, maintaining a light diet, practicing good personal hygiene, keeping the scalp clean, and adopting healthy habits can improve overall hair health.