What Causes Hair Loss and Eyebrow Loss: Understanding the Connection

WrittenbyLuat Duong
Last updated

Everyone loses a few strands of hair daily, but when noticeable hair thinning or bald spots occur, it can be alarming. Equally concerning is losing eyebrow hair, a less-discussed but common issue. This comprehensive guide will answer the key question: What causes hair loss and eyebrow loss? It will shed light on the common triggers, potential treatments, and tips for maintaining healthy hair.

What Causes Hair Loss and Eyebrow Loss?

Several factors contribute to hair and eyebrow loss, including hormonal imbalances, nutritional deficiencies, certain diseases, and lifestyle habits. It's crucial to identify the specific cause in order to find the most effective treatment.

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Detailed Causes of Hair and Eyebrow Loss

Alopecia Areata

This autoimmune disease targets hair follicles, slowing or halting hair production, resulting in patchy hair loss on the scalp and eyebrows. There are several types, including Alopecia Universalis, which leads to complete hair loss.

Nutrient Deficiencies

The human body requires various nutrients for optimal hair growth, including proteins, vitamins A, C, E, B-7, B-12, D, iron, cysteine, and omega-3 fatty acids. Deficiency in these nutrients could result in hair and eyebrow loss.

Skin Conditions

Skin conditions such as eczema, psoriasis, contact dermatitis, seborrheic dermatitis, and tinea capitis (ringworm) can interfere with hair growth, causing hair and eyebrow loss.

Thyroid Issues

Thyroid diseases often disrupt hair growth cycles, leading to hair and eyebrow loss. The thyroid gland's hormonal imbalances can affect metabolism and a host of other bodily processes.

Stress and Anxiety

Excessive stress and anxiety can lead to physiological changes, such as fluctuating hormone levels and reduced oxygen to hair follicles, causing hair and eyebrow loss.

Pregnancy and Childbirth

Hormonal fluctuations during pregnancy and childbirth can disrupt hair growth cycles, resulting in temporary hair loss.


With age, hormonal changes lead to natural thinning of hair in both men and women.

Physical Trauma and Lifestyle Habits

Persistent plucking of eyebrows or overuse of makeup products can damage hair follicles, causing hair loss.

Medical Treatments

Medical treatments such as chemotherapy can cause hair loss, as the treatment targets rapidly dividing cells, including hair follicles.

Potential Treatments for Hair and Eyebrow Loss

Once the cause of hair loss is determined, appropriate treatments can be sought. These could range from over-the-counter medications and prescription drugs to lifestyle changes and surgical procedures.

Over-the-counter and Prescription Medications

Minoxidil (Rogaine), corticosteroids, and Bimatoprost (Latisse) are some medications that can treat hair loss caused by hormonal issues, inflammation, or disorders like telogen effluvium.

Nutritional Supplementation

Taking supplements rich in antioxidants, omega-3, and omega-6 fatty acids can combat hair loss resulting from nutritional deficiencies.

Cosmetic Procedures

Eyebrow transplant restoration, similar to scalp hair replacement, can be an option for severe eyebrow loss. Permanent makeup or microblading can also conceal eyebrow loss.

Lifestyle Changes

Eating a balanced diet, managing stress, and avoiding over-plucking or harsh chemicals can help maintain healthy hair and prevent hair loss.


Hair loss, whether on the scalp or eyebrows, can be a distressing experience. Identifying the underlying cause is key to finding the right treatment. It's important to consult a healthcare provider if you start experiencing hair loss. They can help diagnose the issue and provide the appropriate treatment plan.

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Luat Duong

Luat Duong is a Copenhagen-based writer and content strategist specializing in hair loss and health. His work has been featured in MyHealthGuide, The Right Hairstyles, and Woman's Era. He is a graduate of Vaasa University. You can connect with him on LinkedIn.