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Hormones and genetics affect hair growth and patterns, with some changes reversible and others not.

There are still challenges in diagnosing and treating chronic skin diseases, but there is hope for future improvements.

The LRRK2-G2019S mutation in Parkinson's disease has a lifetime penetrance of 25-35%, and finasteride may help reduce symptoms in adult male Tourette syndrome patients.

Finasteride reduces Tourette syndrome symptoms, but results may be limited due to potential biases.

Hormone imbalances can cause specific skin changes, which may help in early detection of endocrine disorders.

Fat cells are important for tissue repair and stem cell support in various body parts.

Finasteride may help reduce symptoms in male Tourette syndrome patients.

Adrenal disorders can cause lasting brain and behavior issues in children.

Combining microsurgery with craniofacial reconstruction improves aesthetic results and reduces harm to the area where tissue is taken from.

Different sports can cause specific skin conditions that need proper diagnosis and treatment.

5-alpha reductase inhibitors slightly increase the risk of sexual and mood side effects, and breast growth in men.

Cosmetics and procedures can cause eye issues, from mild discomfort to serious conditions, due to allergies, toxins, or poor care.

Pregnancy can change skin disease severity, with some conditions improving and others worsening, and treatment should balance benefits and fetal safety.

Dutasteride safely promotes hair growth and reduces hair loss, with mild side effects.

Laser hair reduction near the eyebrows can cause serious eye injuries even with safety measures.

The document describes a woman with familial Parkinson's disease due to a genetic mutation, showing severe symptoms and poor response to treatment, and suggests finasteride may help reduce symptoms in Tourette syndrome.

Subcutaneous contraceptives can cause side effects like menstrual changes, headaches, weight gain, and pain at the implant site.

Female donor to male recipient sex mismatch and positive ACA-IgG are key risk factors for vitiligo and alopecia areata in chronic GvHD patients.

Most skin changes during pregnancy are harmless and temporary, but some can risk the fetus and need careful treatment.

Diagnosing PCOS in teenagers should focus on signs of excess male hormones and not rely solely on ovarian ultrasound or irregular periods, and should be reassessed in adulthood.

Some treatments like methotrexate with prednisone might help juvenile morphea, but more research is needed to confirm.

The document concludes that eyelash trichomegaly, which is the abnormal growth of eyelashes, can be present from birth, caused by diseases, or result from certain medications.

Diabetes often causes various skin problems and complications.

A boy with chromosome 13q deletion syndrome developed eye cancer, a woman with breast cancer lost vision due to a rare side-effect of her treatment, a man's vision worsened after using a hair loss drug, and two rare disorders were discussed. Optical Coherence Tomography is useful for diagnosing and monitoring these conditions.

Recognizing and managing skin-related psychiatric disorders in children is crucial for effective treatment.

Some drugs can cause skin and hair color changes, often reversible when the drug is stopped.

Eye exams are crucial for kids with 13q deletion syndrome, tamoxifen can cause vision loss, Propecia may lead to cataracts, Lipoid Proteinosis causes skin bumps, and OCT is useful for diagnosing macular diseases.

Finasteride significantly reduced tics and obsessive-compulsive symptoms in patients with Tourette syndrome.

The patient was diagnosed with anorexia nervosa and severe malnutrition, requiring urgent refeeding and monitoring.

Laser hair removal is effective for dark hair but needs improvement for nonpigmented or fine hairs.