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Diagnosing alopecia areata is challenging and requires careful examination and various tests to distinguish it from other hair loss types.

The guide helps clinicians diagnose and manage hair loss, detailing examination techniques and treatments for different types of alopecia.

COVID-19 may harm male fertility and damage the reproductive system.

PSA could be a marker for hyperandrogenism in women, but more research is needed.

Alopecia areata is an autoimmune hair loss condition treated with corticosteroids, and histologic confirmation is the best diagnosis method.

Testosterone increases hair testosterone levels, stress raises hair cortisol, and relationship status affects hormone levels.

New tests detect finasteride and dutasteride in urine quickly and easily.

The document concludes that a thorough history, physical exam, and specific tests are crucial for diagnosing and managing hair loss effectively.

Sex hormones' effects on COVID-19 are unclear and more research is needed to understand their potential as treatment.

Washing baby socks without flipping them inside out may increase the risk of Hair Tourniquet Syndrome.

Hair mineral analysis might help diagnose diseases early, but standard methods are needed.

The technology can help diagnose and subtype autoimmune diseases by identifying specific autoantibodies.

Testosterone can cause acne and male-pattern baldness, affects hair growth in men and women, and makes male skin more sensitive.

Researchers found four natural compounds that can change DHT levels in prostate cancer cells.

White wax and policosanol from white wax effectively reduced hair loss and promoted hair growth in mice better than a known hair growth drug.

Certain sex hormones and antiandrogens can either slow down or speed up the growth of human hair follicle cells depending on their concentration.

Grateloupia elliptica extract may help prevent hair loss and promote hair growth.

Different causes of beard hair loss have various treatments, including medications, lifestyle changes, and procedures to stimulate hair growth.

Male rats have androgen receptors in their liver, which are different from proteins that bind estrogen.

Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.

Different types of androgens bind differently to two receptors, AR1 and AR2, in Atlantic croaker's brain and ovarian tissues, suggesting these receptors may control different androgen actions in fish.

The exam tested knowledge on various skin-related topics for CME credit.

Androgenetic alopecia involves genetics, hormones, and can be treated with medications or surgery.

Finasteride helps prevent kidney stones, but side effects need more research.

Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.

Resveratrol helps prevent finasteride-induced damage in male rats, improving reproductive function.

Oregano extract helps fix testis and sperm damage caused by finasteride.

Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.

Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.

Myrtle has various health benefits and potential for medicine development.