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A 4-year-old girl with hair loss was diagnosed with early-onset trichotillomania and improved with behavioral interventions.

Women with hyperandrogenism have higher androgen levels and lower SHBG, which may contribute to conditions like excessive hair growth and early puberty.

High levels of testosterone and 5α-DHT can lead to cell death in cells important for hair growth.

An 11-year-old girl with a hair-pulling disorder had a hairball in her stomach and was treated with medication, therapy, and a team of doctors.

The document concludes that understanding hair follicle histology and the hair cycle is crucial for diagnosing alopecia.

Obesity significantly affects skin health, causing conditions like acanthosis nigricans and skin tags, and should be considered during skin exams.

A 46-year-old man showed symptoms of a rare condition usually seen in postmenopausal women, highlighting the need for dentist-dermatologist collaboration.

Hair loss in women may have causes other than hormones.

Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.

The document concludes that specialized hair transplant techniques can be effective, with varying success rates depending on the donor area and patient factors.

Androgens can both increase and decrease hair growth in different parts of the body.

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

Hair loss in secondary syphilis is more common than thought and can be reversed with antibiotics.

Hair and nail changes can indicate health issues, including cancer and side effects from cancer treatments.

Some drugs can cause hair loss, excessive growth, or color changes, often reversible but sometimes permanent.

Body hair transplantation is an effective method for restoring hair in people with severe baldness and limited scalp donor hair.

Gender affects hair and scalp characteristics, with differences in hormone responses, graying patterns, and trace metals.

Dermatoscopy is a useful tool for diagnosing hair disorders and can help choose samples for more detailed analysis.

Scalp cooling can reduce chemotherapy-induced hair loss and should be available in all hospitals.

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

Laser treatment can stimulate hair growth for male pattern hair loss.

Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.

The document explains how to identify different hair problems using a microscope.

Systemic diseases can cause hair loss, which is often reversible with treatment.

Hair transplantation techniques have improved over 12 years, with follicular unit grafting providing more natural results and potential future advances in automation and genetics.

The document explains different hair loss types and treatments, emphasizing diagnosis through examination and tests, and specific treatments for each condition.

Hair transplantation effectively treats burn scar alopecia, improving self-esteem and confidence.

Men with a certain type of hair loss often use facial moisturizers, and a specific antibiotic treatment may help another hair condition.

Modern hair restoration techniques can effectively treat hair loss and provide natural-looking results.

Women's hair gets thinner and grayer as they age, with treatments available for hair loss and graying.