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Hair follicles and deer antlers regenerate similarly through stem cells and are influenced by hormones and growth factors.

Testosterone replacement therapy should be used for men with low testosterone levels and symptoms of hypogonadism, after careful diagnosis and considering individual needs.

Dermatologists play a key role in identifying and documenting signs of abuse and injury for forensic investigations.

Early diagnosis and treatment of PCOS in teenagers can help prevent more severe adult PCOS.

The document concludes that accurate diagnosis of male and female gonadal disorders is crucial for effective treatment and better patient outcomes.

To diagnose Polycystic Ovarian Syndrome, two out of three signs—irregular periods, high male hormone levels, or cysts on the ovaries—are needed.

The document details hair transplantation techniques and innovations, highlighting Follicular Unit Transplantation as the standard and discussing the effectiveness and challenges of the procedure.

Most hair loss can be diagnosed with patient history and physical exam, and a few common types make up most cases.

Aging in hair follicle stem cells leads to hair graying, thinning, and loss.

Most women with excessive hair growth have PCOS; treatment varies and focuses on preventing new hair, with electrolysis as the only permanent removal method.

Skin problems are common in lupus, important for diagnosis, and can be triggered by sunlight.

Hair transplants can make hair follicles larger and hair shafts thicker.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

The study found that mouse sweat glands develop before birth, mature after birth, and have specific keratin patterns.

Hair in mammals likely evolved from glandular structures, not scales.

Hair and nails are skin parts that develop early and serve protective and functional roles.

SAHA syndrome is a condition in women involving skin and hair issues, often related to hormonal imbalances, and is treated based on the underlying cause.

Root hairs are key for developing cereals that can fertilize themselves with nitrogen.

Common noncancerous skin diseases have various treatments, including topical applications, light therapy, surgery, and medications, with psychological support being important.

Nd:YAG laser can reduce hair with multiple treatments, but permanent removal isn't guaranteed.

Antiandrogens have important biological effects, but more research is needed to understand them fully and compare their effectiveness and side effects to other treatments.

Non-classic congenital adrenal hyperplasia is a common disorder causing symptoms like acne and infertility, and it's managed based on symptoms, not just test results. Treatment can improve fertility and reduce miscarriage risk.

Western diet may cause male pattern baldness; low glycemic diet with magnesium could help.

There is no standard treatment for the rare Cronkhite–Canada syndrome, which can be fatal and lead to cancer.

Pregnancy can cause various skin changes, including pigmentation, acne, and stretch marks, and may affect preexisting skin conditions.

Hirsutism in women is often due to hormone sensitivity and has significant psychological effects.

People distressed by minor skin changes should consult dermatologists with cosmetic expertise, and a public Cosmetic Dermatology Service with mental health support is recommended.

Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.

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

Finasteride and dutasteride are effective in treating male hair loss but can cause sexual side effects and birth defects.