March 1998 in “Journal of Dermatological Science” Eccrine gland activity may be linked to alopecia areata.
141 citations,
January 1984 in “Journal of The American Academy of Dermatology” Pregnancy can cause skin darkening, varicose veins, more sweating, hair growth, hair loss after birth, nail changes, and gum inflammation.
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.
35 citations,
December 2014 in “Clinical Obstetrics and Gynecology” Most skin changes during pregnancy go away after giving birth.
24 citations,
July 2011 in “PubMed” Thyroid hormones affect skin texture, hair and nail growth, and can cause skin diseases related to thyroid problems.