September 1998 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Intermittent isotretinoin can cause various skin, hair, and nail changes.
64 citations,
June 1992 in “International Journal of Dermatology” Pregnancy often causes skin changes like darkening, stretch marks, and hair growth, which may improve after childbirth.
41 citations,
October 2017 in “International Journal of Women's Dermatology” Most pregnant women experience skin darkening and hair changes, with these effects usually going away after giving birth.
21 citations,
January 2005 in “Skinmed” Hair and nails are similar keratin structures with different shapes and growth, affected by the same diseases and environmental factors.
8 citations,
May 2021 in “Journal of the European Academy of Dermatology and Venereology” A COVID-19 patient had unusual nail discoloration and nail separation possibly due to the virus's effects on small blood vessels.