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Hair shaft dysplasias are abnormal hair conditions that can be inherited or acquired and may signal other health issues, with limited treatment options available.

Hair shaft disorders are diagnosed through examination and history, with general care and some treatments offering improvement.

Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.

Trichoscopy is a quick and easy way to diagnose most genetic hair problems without invasive methods.

Hair shaft disorders, often due to genetics or environment, lack specific treatments but can be managed with gentle hair care and may improve with age or topical treatments.

The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.

Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.

A woman's hair changed to a dry, tangled texture that's hard to comb after treatment with spironolactone, suggesting the medication might cause such hair changes.

Androgens contribute to common male hair loss; more research needed for hair growth medication.

The study found that polymorphous light eruption varies among patients and can be distinguished from benign summer light eruption by the time it takes for symptoms to appear after sun exposure.

The document concludes that various hair and scalp disorders in children have specific treatments and proper diagnosis is essential.

Trichoscopy is a useful tool for diagnosing hair disorders without pulling out hair.

Hair problems can be caused by genetics or the environment, and treatment should focus on the cause and reducing hair damage.

Edar signaling is crucial for proper hair follicle development and function.

The document concludes that early diagnosis and treatment are crucial for children with hair loss to prevent permanent damage, although not all conditions can be effectively treated.

The NF-κB effector p65/RelA activates hair keratin genes, aiding hair formation.

The document emphasizes the importance of correctly identifying and classifying genetic hair disorders to help diagnose related health conditions.

Pili torti is a rare condition where hair is twisted and breaks easily, often linked to genetic disorders or other health issues.

Five Weimaraners had a milder form of color dilution alopecia causing hair loss and skin issues.

The conclusion is that genetic testing is important for diagnosing and treating various genetic hair disorders.

Mutations in three genes cause Uncombable Hair Syndrome, leading to frizzy hair that can't be combed flat.

The EDAR gene mutation leads to thinner and more deformed hair shafts.

TNF family proteins are crucial for the development of skin features like hair, teeth, and mammary glands.

Bleaching hair damages protein structure, especially keratin, leading to weakened hair.

Hair and nails are similar keratin structures with different shapes and growth, affected by the same diseases and environmental factors.

Mice are useful for researching human hair loss and testing treatments, despite some differences between species.

Children's hair loss can be caused by many factors, including autoimmune diseases, emotional stress, genetics, and infections, with treatment and prognosis varying.

The document concludes that various childhood hair and nail disorders exist, some may improve on their own, and advances in genetics and immunology could enhance treatment and counseling.

Most hair loss in children is caused by a few common conditions, and it's important to diagnose these properly and support the child's mental health.

Congenital alopecia in domestic animals is rare and involves abnormal hair follicle development, needing better understanding and classification.