As a dermatologist with a focus on hair and scalp health, I can provide you with an in-depth understanding of why hair falls out. Hair loss, or alopecia, can be attributed to a variety of factors, including:


1. Genetics: Hereditary hair loss, also known as androgenetic alopecia, is the most common cause, affecting both men and women as they age.

2. Hormonal changes: Fluctuations in hormone levels, such as those experienced during pregnancy, menopause, or due to thyroid disorders, can lead to hair loss.

3. Stress: Physical or emotional stress can cause temporary hair loss.

4. Nutritional deficiencies: Lack of essential nutrients, particularly iron, protein, and vitamins, can result in hair shedding.

5. Hazardous hair care: Excessive use of hair styling tools, chemical treatments, or tight hairstyles can damage hair and cause it to break.

6. Medications: Certain medications, like those used for cancer, arthritis, depression, and high blood pressure, can cause hair loss as a side effect.
7.
Medical conditions: Diseases such as alopecia areata, an autoimmune disorder, or scalp infections can lead to hair loss.

It's important to consult with a healthcare professional to determine the specific cause of hair loss and to discuss appropriate treatment options.

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The most common cause of hair loss is hereditary male- or female-pattern baldness. ... Medical conditions that can cause hair loss include thyroid disease, alopecia areata (an autoimmune disease that attacks hair follicles), and scalp infections like ringworm.read more >>