68 citations
,
April 1965 in “General and Comparative Endocrinology” The pituitary gland controls seasonal fur color changes in weasels.
October 2021 in “DOAJ (DOAJ: Directory of Open Access Journals)” Trichoscopy effectively distinguishes between severe and mild male pattern hair loss.
2 citations
,
January 2022 in “Indian dermatology online journal” Dermoscopy may not show hookworms clearly, and comparing it with tissue studies could improve diagnosis accuracy for skin conditions caused by parasites.
1 citations
,
October 2025 in “Scientific Reports” Mandarin duck sail feathers change with seasons due to hormones and genetic regulation.
25 citations
,
December 2008 in “Journal of Dermatological Case Reports” Skin color may change how alopecia areata looks under a dermoscope.
4 citations
,
January 1991 in “Dermatology” Hair casts are small structures on hair shafts with unknown causes.
January 2007 in “Journal of the American Academy of Dermatology” A 73-year-old man's grey-white hair turned dark brown after eczema treatment.
2 citations
,
January 2002 in “Clinics in Dermatology” Vitiligo causes white skin patches, often starts before age 20, and is linked to other health issues.
5 citations
,
January 2016 in “European Journal of Dermatology” Suplatast tosilate successfully treated a woman's systemic sclerosis symptoms.
30 citations
,
March 2015 in “Journal of Dermatology” Hair thickness differences help diagnose hair loss severity.
8 citations
,
August 1971 in “Canadian Journal of Zoology” Chinchillas have specific blood and protein levels, with variations possibly linked to pregnancy or hair growth.
7 citations
,
October 1985 in “Genetics Research” Beige and leaden pigment genes act within melanocytes, affecting pigment patterns.
6 citations
,
January 1988 in “PubMed” Swimming in pools with high copper can turn hair green, especially if hair is damaged.
30 citations
,
May 1980 in “Journal of the American Academy of Dermatology” Alopecia areata can cause spotty white areas on nails.
51 citations
,
May 1996 in “American journal of physiology. Regulatory, integrative and comparative physiology/American journal of physiology. Regulatory, integrative, and comparative physiology” Gray seals use more energy and have higher hormone levels during their annual fur-shedding period.
October 2012 in “Indian Journal of Dermatology, Venereology and Leprology”
32 citations
,
July 2017 in “Dermatology practical & conceptual” New hair and skin changes were found in a rare case of syphilis-related hair loss.
January 1998 in “The Nishinihon Journal of Dermatology” A 7-year-old girl was diagnosed with Netherton's Syndrome, shown by skin and hair symptoms.
3 citations
,
May 2024 in “Skin Appendage Disorders” Trichoscopy helps diagnose and understand Discoid Lupus Erythematosus on the scalp by identifying specific patterns.
June 2023 in “International Journal of Dermatology” Lichen planus pigmentosus mainly affects middle-aged women with darker skin, is underreported, and is hard to treat.
16 citations
,
November 2008 in “Journal of the American Academy of Dermatology” Consider necrolytic acral erythema in similar cases and treat with oral zinc sulfate.
October 2023 in “Jurnal Ilmu Kesehatan Hewan” The kitten's skin condition improved significantly after 4 weeks of treatment.
7 citations
,
March 2003 in “PubMed” The scalp has a natural speckled pattern of increased pigment around hair follicles, possibly linked to local hormone production.
3 citations
,
June 2021 in “Actas Dermo-Sifiliográficas” Dermoscopy can effectively identify Malassezia folliculitis.
January 2026 in “Cosmoderma” A 9-year-old girl has a rare hair disorder causing beaded, sparse hair.
January 2016 in “Elsevier eBooks” Dermatophycosis is a treatable fungal skin infection spread by contact with infected animals.
1 citations
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June 2017 in “Veterinary dermatology” A cross-bred lamb with severe skin and movement issues had ichthyosis fetalis but normal vitamin A levels.
1 citations
,
January 2018 in “Jornal Brasileiro de Patologia e Medicina Laboratorial” Monilethrix causes brittle hair and hair loss, and it runs in families.
January 2025 in “Open Veterinary Journal” Zinc, copper, and vitamin A deficiencies cause skin disorders in sheep.
6 citations
,
January 2017 in “Journal of toxicologic pathology” Rabbit skin with active hair growth shows thicker, redder areas due to larger, more numerous hair follicles and increased blood vessels.