Eyebrows play a crucial role in framing the face, expressing emotions, and protecting the eyes. They shield the eyes from sweat and debris, triggering a blink reflex when disturbed. Experiencing eyebrow thinning can be distressing, prompting many to seek answers and solutions. Eyebrow hypotrichosis, also known as eyebrow madarosis, refers to the loss of hair in the eyebrows, affecting both men and women.
Madarosis is the medical term for the loss of eyelashes or eyebrows. It's important to differentiate madarosis from normal hair shedding. Everyone loses a few eyebrow hairs or eyelashes daily as part of the natural hair growth cycle. Madarosis involves losing hair at an accelerated rate, often in larger amounts. When hair loss outpaces the follicle's ability to regenerate, it results in thinning. Madarosis can manifest as superciliary madarosis (eyebrow loss) or ciliary madarosis (eyelash loss). Some conditions causing madarosis lead to scarring, while others do not.
Certain conditions that cause madarosis can lead to scarring on or under the skin. This distinction is important because scarring can affect the potential for hair regrowth.
Eyebrow thinning can stem from various factors, ranging from grooming habits to underlying medical conditions. Identifying the root cause is crucial for effective treatment.
One of the most common culprits behind thinning eyebrows is excessive plucking or waxing. This practice can lead to temporary hair loss and, over time, potentially permanent hair loss known as traction alopecia. Repeatedly pulling hairs from the follicles can damage the hair-producing cells.
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As people age, it's natural to experience hair thinning or loss on various parts of the body, including the eyebrows. Hair follicles may cease producing hair, and the existing hair strands become finer and lose their color, turning gray or white.
Hormonal imbalances, particularly thyroid disorders, can significantly impact eyebrow hair. Both hyperthyroidism (overactive thyroid) and hypothyroidism (underactive thyroid) can contribute to hair loss. In hypothyroidism, hair loss may be noticeable in the outer third of the eyebrow. Other symptoms of thyroid disorders include dry skin, swelling in the neck (goiter), coarse hair, and brittle nails. Thyroid-related hair loss is often temporary, with hair regrowth occurring once thyroid levels are normalized with medication.
Women's hormones fluctuate throughout life stages like puberty, pregnancy, and menopause, all of which can affect hair, including eyebrow hair.
Autoimmune conditions occur when the immune system mistakenly attacks the body's own cells, including those responsible for hair growth. Conditions like alopecia areata, frontal fibrosing alopecia, and discoid lupus erythematosus can lead to thinning hair or hair loss, including in the eyebrows.
Healthy skin is essential for healthy hair growth, as hair follicles reside within the skin. Skin conditions that cause inflammation, itching, and flaking can disrupt hair growth and lead to eyebrow hair loss. Common skin conditions associated with eyebrow thinning include atopic dermatitis (eczema), psoriasis, and seborrheic dermatitis.
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Eczema, an inflammatory skin condition, can cause the skin to become dry, scaly, and itchy. When eczema develops above the eyes, it can also lead to thinning eyebrows (also known as Hertoghe's sign or Queen Anne's sign).
Psoriasis, a chronic skin condition, can develop on any part of the body, including the eyebrow area. Psoriasis occurs when the body produces skin cells at an abnormally fast pace, causing the skin to thicken and form plaques. Hair loss can occur in the affected area.
Adequate nutrition is vital for maintaining healthy hair. Deficiencies in certain nutrients can contribute to eyebrow hair loss. These deficiencies include fatty acids, biotin, and zinc. A balanced diet rich in nutrients and minerals can promote hair health and potentially stimulate the regrowth of lost eyebrow hair. Eating enough protein is critical to maintaining healthy hair. Nutrition experts recommend including protein at every meal.
Certain medications can cause hair loss as a side effect, potentially affecting the eyebrows. These medications include acitretin (used for skin conditions like psoriasis), chemotherapy drugs, and valproic acid (an anticonvulsant).
Although less common, certain genetic conditions can lead to eyebrow hair loss. These conditions include ectodermal dysplasias, which affect the skin, hair, nails, and teeth, and Netherton syndrome, which affects the skin, hair, and immune system.
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Stress can cause a type of hair loss called telogen effluvium, affecting the hair on your head as well as areas like your eyebrows. Telogen effluvium prematurely triggers hair follicles to enter the shedding stage, resulting in hair loss. Causes can include stressors like illness, severe lack of sleep, psychological stress or trauma, major surgery, or childbirth.
Untreated syphilis, a sexually transmitted infection, may cause patchy hair loss along the eyebrows as well as on the face, scalp and body. Ringworm in the eyebrow area is another infectious cause of brow hair loss.
Less common causes of eyebrow hair loss include radiation, amyloidosis, sarcoidosis, chemical burns, trichotillomania (hair-pulling disorder), basal cell carcinoma, folliculotropic mycosis fungoides, squamous cell carcinoma, syphilis, and Hansen’s disease (leprosy).
Diagnosing the cause of eyebrow hair loss typically involves a thorough evaluation by a healthcare provider or eye care specialist. This may include:
The treatment approach for eyebrow hair loss depends on the underlying cause.
Bimatoprost is a topical treatment approved by the Food and Drug Administration (FDA) for eyelash regrowth. Studies have shown promising results with once-daily application. However, potential side effects include contact dermatitis, skin hyperpigmentation, and itchy skin.
Topical corticosteroids (creams or ointments) can help slow hair loss. Corticosteroid injections can also stimulate hair growth, particularly in cases of alopecia areata.
Minoxidil, often used in conjunction with corticosteroids, may be applied topically to stimulate hair growth.
Hair transplant and microblading are options for improving the appearance of eyebrows, but they do not stimulate hair regrowth. Hair transplantation involves transplanting hair follicles from the head to the eyebrow area. Microblading is a semi-permanent makeup technique that creates the illusion of fuller eyebrows by adding fine, hair-like strokes.
Microblading differs from tattooing and the traditional form of permanent makeup in that it is typically done by hand versus a machine and doesn’t go as deep into the skin. Pigments for microblading are chosen based on your natural skin tone and hair colour that fades over time. The goal is to create delicate strokes that mimic hairs that result in a natural, more complete eyebrow.
In many cases, addressing the underlying cause of eyebrow hair loss can lead to hair regrowth. This may involve:
While not all causes of eyebrow thinning are preventable, the following tips can help maintain healthy eyebrows:
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