Hair loss is one of the most common reasons for visiting a dermatologist. While it’s normal to shed between 50 and 100 hairs a day, many people begin to worry when they see more hair than usual on their brush, in the shower, or on their pillow. The good news is that in most cases, hair loss can be treated. Understanding the causes is the first step toward finding the right solution.
Main causes of hair loss
- Genetics: Hereditary hair loss (androgenic alopecia) is the most common cause. It can start as early as adolescence or appear with age, in both men and women.
- Hormonal changes and health conditions: Pregnancy, postpartum, menopause, thyroid issues, and anemia are frequent and treatable causes.
- Stress: Intense physical or emotional stress can trigger diffuse hair shedding weeks or even months later.
- Nutritional deficiencies: Low levels of iron, zinc, protein, or vitamins like biotin can weaken the hair follicles.
- Aggressive hair habits: Tight hairstyles, frequent straightening, dyes, or excessive heat can damage the scalp and promote hair loss.
When to see a doctor
- If the hair loss is sudden, severe, or occurs in patches.
- If you experience itching, burning, redness, or flaking of the scalp.
- If the hair loss affects your self-esteem or emotional well-being.
Tips to care for your hair
- Eat well: Include protein-rich foods like eggs, iron, fruits, and vegetables.
- Avoid heat and harsh treatments such as bleaching or frequent use of hot styling tools.
- Be gentle when styling: Avoid pulling or tight hairstyles that strain the scalp.
- Sleep well and manage stress: Your hair benefits from it too.
- Seek help early: Treatments like minoxidil, supplements, laser therapy, or even hair transplants can be effective in some cases.
Not all hair loss is permanent. In many cases, with proper diagnosis, lifestyle adjustments, and medical support, it’s possible to stop the loss and stimulate new growth. If you notice something unusual, don’t wait—your hair health is an important part of your overall well-being.
References:
- Mayo Clinic. “Hair loss: Causes and treatments,” 2024.
- Harvard Health Publishing. “Hair Loss (Alopecia),” 2023.
- Cleveland Clinic. “Hair Loss: What You Should Know,” 2023.
About The Author
Dr. Rossana “Gigí” Nieto
Health Communication Expert | Public Health Professor | Academic Management
I have more than 10 years of experience in health communication and content creation on social media platforms, TV and radio. I have worked as a full professor in higher medical education for over ten years.