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GlossaryHair Cross-Section

shape and structure of a hair strand's cut end

Hair cross-section refers to the shape and structure of a hair strand when it is cut perpendicular to its length. This cross-sectional shape can be round, oval, or flat, and it influences the hair's texture and curl pattern. For example, round cross-sections are typically associated with straight hair, while oval or flat cross-sections are linked to wavy or curly hair. Understanding hair cross-sections is important for professionals in dermatology and cosmetology as it helps in diagnosing hair conditions and tailoring hair care treatments.

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Cross-Sectional Study of Hair Loss Patterns in 122 Korean Systemic Lupus Erythematosus Patients: A Frequent Finding of Non-Scarring Patch Alopecia

research Cross-Sectional Study of Hair Loss Patterns in 122 Korean Systemic Lupus Erythematosus Patients: A Frequent Finding of Non-Scarring Patch Alopecia

34 citations, June 2007 in “The Journal of Dermatology”

Most Korean systemic lupus erythematosus patients experienced hair loss, often as non-scarring diffuse hair loss, with non-scarring patch alopecia also common.

research The Cross-Section Trichometer: A New Device for Measuring Hair Quantity, Hair Loss, and Hair Growth

29 citations, March 2008 in “Dermatologic Surgery”

The Cross-section Trichometer is a new tool that can measure hair quantity and detect hair loss and growth.

research Cross-Section Trichometry: A Clinical Tool for Assessing the Progression and Treatment Response of Alopecia

15 citations, January 2012 in “International journal of trichology”

The HairCheck® device is effective for measuring hair loss and growth in people with alopecia.

research Cross-Sectional Survey Examining Skin Picking and Hair Pulling Disorders During the COVID-19 Pandemic

12 citations, December 2020 in “Journal of The American Academy of Dermatology”

The COVID-19 pandemic increased symptoms in people with skin picking and hair pulling disorders.

research Cross-Sectional Study of the Prevalence of Polycystic Ovary Syndrome in Rural and Urban Populations

11 citations, June 2019 in “International journal of gynaecology and obstetrics”

Polycystic ovary syndrome (PCOS) is more common in urban areas, possibly due to lifestyle and diet, and ignoring it can lead to serious health issues.

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community If You Have DUPA, PLEASE READ THIS: Everyone Should Be Scalp Biopsied

in Research 827 upvotes 5 months ago

Scalp biopsies are crucial for diagnosing hair loss conditions like Diffuse Unpatterned Alopecia (DUPA) and retrograde hair loss, as treatments like finasteride and dutasteride may not be effective if other conditions are present. Combining PPAR-GAMMA agonists with retinoids could improve treatments for conditions like Lichen Planopilaris.

community Quit vaping/smoking = 80% less loss

in Research/Science 235 upvotes 9 months ago

Quitting vaping significantly reduced hair loss for a user who was a heavy vaper and also taking finasteride. Some participants suggest nicotine's vasoconstrictive properties may worsen hair loss, while others share personal anecdotes of hair improvement after quitting smoking or vaping.

community Long term finasteride users; Did you notice any improvement after 2 years?

in Finasteride/Dutasteride 14 upvotes 1 year ago

Long term Finasteride users and whether or not they have noticed improvements after two years of use, with other treatments such as Minoxidil and dermarolling also discussed. Some replies suggest that improvement is possible even beyond the two year mark while others caution against believing studies backed by the Post-Finasteride Foundation.

community PSA: Most men who stay on Fin will see the sexual side effects go away. Stop the fear mongering

in Finasteride/Dutasteride 191 upvotes 2 years ago

Finasteride can cause sexual side effects in less than 2% of men, but these often disappear over time, even if the treatment continues. Some users report persistent side effects, while others experience no issues or only temporary ones.

community When you pop your first Fin pill

in Satire 3 years ago

Hair loss treatment using Fin, Minoxidil and RU58841 with discussion about potential side effects and the power of nocebo effect.

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