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Hair removal with intense pulsed light can cause rare skin lesions that are hard to fully treat.

Human hair follicles can regenerate after removal, but with low success rate.

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

Hair follicles are essential for skin health, aiding in hair growth, wound healing, and immune function.

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

Scalp biopsies are important for diagnosing hair loss conditions.

Transplanted transected hair follicles can survive but grow at unsatisfactory rates and are thinner, suggesting limited potential for unlimited donor hair supply.

Cutting hair follicles into pieces for transplantation results in poor growth and thinner hair, and the technique is more invasive than previously thought.

No treatment fully prevents hair loss from chemotherapy yet.

Male hormones are important for hair and oil gland development and can cause conditions like excessive hair growth and acne.

New suturing technique with wider intervals and shallow stitches helps prevent scalp scars and promotes hair growth.

The oncoprotein causes abnormal hair growth without increasing skin cancer risk.

The document concludes that correct diagnosis of alopecia types is crucial, scalp biopsies are important, and more research is needed.

A 13-year-old girl's masculine symptoms improved after surgery for a rare adrenal tumor that produced male hormones.

Hair disorders include hair loss, excessive hair growth, and ingrown hairs, with various treatments available depending on the cause.

Laser hair removal is safe and effective for fair-skinned people with dark hair, and using eflornithine with laser treatments can improve results.

The document concludes that periocular hair disorders have various causes and treatments, and proper evaluation by specialists is important for management and prognosis.

Many elderly women experience unwanted facial hair and various hair loss conditions, with treatments available for each condition.

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

Early and aggressive treatment of scarring alopecia is important to prevent further hair follicle damage.

The perception of excessive hair growth in women as abnormal is more influenced by cultural norms than by medical reasons.

Up to 50% of scalp hair can be lost before it appears thin, and treatment is only needed for hair loss caused by diseases or deficiencies.

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

The document concludes that more research is needed to better understand and treat scarring hair loss conditions.

Early diagnosis and aggressive treatment are key for managing rare scalp disorders that cause permanent hair loss.

The chapter explains the causes of excessive hair growth and masculinization in women and how to measure hormone levels related to these conditions.

Male pattern baldness may be caused by factors like poor blood circulation, scalp tension, stress, and hormonal imbalances, but the exact causes are still unclear.

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

Male and female skin differ in many ways, which could lead to gender-specific skin treatments.

Skin changes can help diagnose and manage endocrine disorders like thyroid problems, diabetes, and adrenal gland conditions.