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Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

Over one-third of women experience hair loss, with female-pattern hair loss being most common, and treatments include minoxidil and possibly hair transplantation.

Male pattern baldness involves hormones and cell signals affecting hair growth.

Testosterone treatment in trans men increases body and facial hair and may lead to hair loss over time, but severe skin issues are rare.

Gonadal hormones may influence sex differences in play fighting in animals, but their effect on human spatial behavior is unclear and needs more research.

Hormones like testosterone and estrogen significantly affect hair growth and structure.

5α-reductase is essential for male sexual development and its inhibitors have potential in treating various conditions related to hormone action.

Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.

The study found that two enzymes linked to hair loss are located in different parts of the scalp, supporting a common treatment's effectiveness.

Finasteride helps regrow hair and shrink prostate by reducing DHT, with some sexual side effects.

The conclusion is that early diagnosis and a multi-system treatment approach are crucial for managing PCOS and its associated health risks.

Gynecologists should provide comprehensive care for transgender patients, including mental health evaluation, hormone therapy, and surgical options, while monitoring for side effects and ensuring patient safety.

The document concludes that hirsutism is the main sign for diagnosing hyperandrogenism, which requires a detailed patient history and physical exam.

Oral contraceptives provide various health benefits beyond birth control, including managing menstrual issues, skin conditions, pain, and reducing the risk of certain cancers.

Hormonal treatments can help with acne, especially in women, by lowering androgen levels or blocking their effects.

Hidradenitis suppurativa is caused by genetic factors, inflammation, bacteria, hormones, and lifestyle factors like obesity and smoking.

Norgestimate is the most effective birth control progestin for reducing an enzyme linked to acne and excessive hair growth in women.

Environmental factors, hormones, nutrition, and stress all significantly affect skin health and aging.

S5αR inhibitors might help treat schizophrenia and other mental disorders but need more research.

Oestrogens help maintain healthy skin, heal wounds, and may protect against skin aging and cancer.

The document concludes that careful evaluation is key to diagnose and treat women with hair loss, with tests for thyroid, iron, and hormones as needed.

Oxidative stress is a key factor in the development of Polycystic Ovary Syndrome, and weight management can improve symptoms.

Finasteride effectively treats male pattern baldness, improving hair growth and density.

Dermatologists play a key role in treating skin symptoms of PCOS like dark patches, excess hair, acne, and hair loss.

Baldness caused by male hormones in female-to-male transsexuals doesn't increase the risk of heart disease.

Higher iron levels in the blood are not linked to increased hair loss in women.

Finasteride may treat baldness but less effective for those with 5α-reductase deficiency.

People often struggle to consistently use contraceptives and other medications, and long-acting options might be better for those who want to avoid daily doses.

The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.

The protein StAR is found in 17 different organs and can affect hair loss and brain functions, but its full role is not yet fully understood.