Hair loss, also known as alopecia, can occur for various reasons, and the causes can be influenced by both genetic and environmental factors. Here are some common reasons why hair loss happens:

1. Genetics (Hereditary Hair Loss): The most common cause of hair loss is hereditary conditions, such as male-pattern baldness (androgenetic alopecia) and female-pattern baldness. These conditions are influenced by a combination of genetic and hormonal factors.

2. Hormonal Changes and Medical Conditions:

   • Hormonal Changes: Changes in hormonal levels, such as those that occur during puberty, pregnancy, childbirth, and menopause, can lead to temporary or permanent hair loss.
   • Medical Conditions: Certain medical conditions, such as thyroid disorders, autoimmune diseases (like alopecia areata), and polycystic ovary syndrome (PCOS), can contribute to hair loss.

3. Aging: As people age, hair growth naturally slows down. Hair becomes thinner, and the rate of hair loss may increase.

4. Nutritional Deficiencies: Inadequate intake of essential nutrients, such as vitamins and minerals (e.g., iron, zinc, vitamin D), can contribute to hair loss.

5. Stress and Emotional Factors: Emotional and physical stress can contribute to hair loss. Severe stress or traumatic events, such as surgery, illness, or the death of a loved one, can lead to a type of hair loss known as telogen effluvium.

6. Certain Medications and Treatments: Some medications, such as chemotherapy drugs, anticoagulants, and certain antidepressants, may cause hair loss as a side effect. Additionally, certain medical treatments like radiation therapy can result in hair loss in the treated area.

7. Poor Hair Care Practices: Excessive use of heat styling tools, harsh chemical treatments, and tight hairstyles (such as ponytails or braids) can damage the hair and contribute to hair loss.

8. Infections and Skin Conditions: Scalp infections, fungal infections, and certain skin conditions like psoriasis and seborrheic dermatitis can lead to hair loss.

9. Environmental Factors: Exposure to environmental pollutants, toxins, and harsh climates can affect the health of the hair.

It’s important to note that identifying the specific cause of hair loss often requires a comprehensive evaluation by our healthcare professional so that they may assess your medical history, perform relevant tests, and recommend appropriate treatments or interventions based on the underlying cause.