November 2025 in “Anxiety Stress & Coping” Higher anxiety symptoms and social behavior affect stress levels in hair.
January 2016 in “Dermatology Review” Endocrine disorders can cause various skin and hair issues.
February 2009 in “Springer eBooks” Pregnancy can cause more body and scalp hair growth and make nails brittle, but these changes often revert after giving birth.
96 citations
,
February 2002 in “Journal of the American Academy of Dermatology” Pseudofolliculitis barbae is a chronic skin condition affecting mainly African American and Hispanic individuals, caused by shaving tightly curled hair, and managed by prevention and treatment but not curable.
2 citations
,
January 1990 September 1976 in “PubMed” Hirsutism is excessive male-pattern hair growth mainly caused by ovarian hormones, and severe cases may require costly treatment with side effects.
210 citations
,
February 2008 in “Nature genetics” Mutations in the P2RY5 gene cause autosomal recessive woolly hair.
July 2001 in “Pediatrics in review” The girl's increased hair growth and other symptoms were due to a hormone-secreting ovarian tumor, which was successfully treated with surgery.
335 citations
,
March 2004 in “Development” Temporary activation of β-catenin can create new hair follicles, but ongoing activation is needed to keep hair follicle tumors.
January 2008 in “Catalunya música: Revista musical catalana” Tooth loss can cause premature gray hair due to less chewing.
12 citations
,
December 2016 in “PubMed” Hirsutism involves excessive hair growth due to hormonal issues and can be treated with medication or surgery.
1 citations
,
June 2022 in “PubMed” Alopecia causes hair loss and should be treated early, especially scarring types where hair cannot regrow.
September 2025 in “Indian Journal of Dermatology” A Turkish woman has a hair condition caused by a LIPH gene mutation.
18 citations
,
March 1992 in “Archives of Dermatology” The man's scarring alopecia and skin issues did not improve with treatments.
April 2022 in “Our Dermatology Online” A woman had unusual hair growth on one side of her chin without a known cause.
January 2026 in “Clinical Case Reports” Early diagnosis and treatment of Lichen Planopilaris are crucial to prevent permanent hair loss.
8 citations
,
January 2011 in “International journal of trichology” Accurate diagnosis of APL is crucial to avoid unnecessary treatments.
3 citations
,
June 1979 in “The Journal of Dermatology” Glycosaminoglycan levels peak early in hair growth and decrease as the cycle progresses.
May 2024 in “Psychotherapie Forum” Behavioral and hypnotherapy improved self-esteem but didn't regrow hair in Alopecia areata.
July 2018 in “Elsevier eBooks” Stopping tight hairstyles can prevent and reduce traction alopecia.
4 citations
,
January 1992 in “American Journal of Ophthalmology” April 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” A girl with excessive hair growth had a genetic change on chromosome 17 that reduced the activity of two genes linked to hair growth.
61 citations
,
October 2011 in “Experimental dermatology” Scalp itching is common and hard to diagnose due to the complex nerve structure of the scalp.
14 citations
,
March 2007 in “Pediatric pulmonology” Inhaled steroids in children may cause excessive hair growth and not always go away after stopping the medication.
July 2018 in “Elsevier eBooks” Up to half of people experience itchy scalp, often due to skin conditions like seborrheic dermatitis or psoriasis, and treatments vary based on the specific cause.
17 citations
,
April 1997 in “American Journal of Dermatopathology” PC-associated alopecia has unique microscopic features.
Pseudofolliculitis causes painful bumps and dark spots from shaving, especially in people with curly hair, and can be treated by changing shaving habits and using specific topical treatments.
1 citations
,
June 2018 in “Archives of Disease in Childhood Education & Practice” The girl's hair started regrowing after 6 weeks of treatment.
September 2021 in “Mağallaẗ al-Muẖtar li-l-ʿulūm” Two sisters have rare hair disorders causing short, fragile, kinky hair.
4 citations
,
April 1978 in “PubMed” Netherton syndrome in a boy caused skin and hair issues, and treatment didn't work.