3 citations
,
August 2022 in “Cutis” Certain nail conditions can suggest thyroid problems, with different symptoms for underactive (slow, thin nails) and overactive (spoon-shaped, brittle nails) thyroid.
November 2025 in “International Journal of Innovative Research in Technology” Hormones significantly affect hair growth and loss, requiring personalized treatment.
24 citations
,
September 2014 in “PloS one” Thyroid hormone receptors are essential for hair growth and wound healing.
3 citations
,
January 2013 Hypothyroidism in dogs is usually caused by immune system issues or gland atrophy, affects middle-aged purebreds most, and is treatable with medication.
1 citations
,
December 2015 in “The Egyptian Journal of Histology” Hypothyroidism harms rat skin, but topical triiodothyronine may help improve it.
January 2021 in “Acta Scientiae Veterinariae” Levothyroxine effectively treated a dog's skin and hair problems caused by hypothyroidism.
January 2016 in “Dermatology Review” Endocrine disorders can cause various skin and hair issues.
163 citations
,
November 2003 in “Journal of Investigative Dermatology” Low iron levels may be linked to some types of hair loss in women.
76 citations
,
May 2007 in “Menopause International” After menopause, women lose a lot of skin collagen, but estrogen replacement might improve skin health.
63 citations
,
October 1972 in “British Journal of Dermatology” Women with thinning hair have thinner hair strands than women without hair loss.
57 citations
,
August 1998 in “The journal of small animal practice/Journal of small animal practice” Malassezia-associated dermatitis can cause itching in cats with feline paraneoplastic alopecia.
39 citations
,
July 2007 in “SKINmed Dermatology for the Clinician” A 4-year-old girl's hair loss stopped after taking zinc supplements and changing her diet.
30 citations
,
January 2013 in “International Journal of Trichology” The most common causes of hair loss in Jordanian children are fungal infections, autoimmune hair loss, and hair shedding after fever, with zinc deficiency also being a notable cause.
20 citations
,
September 1998 in “PubMed” Gorillas in Gabon improved after protein supplements were added to their diet.
14 citations
,
June 2016 in “Pediatric Dermatology” Some congenital hair disorders improve with age and can be managed with treatments like minoxidil, retinoids, supplements, and gentle hair care, but there's no cure.
12 citations
,
February 2001 in “Annals of Pharmacotherapy” No effective treatment for hair loss after childbirth was found, but it usually gets better on its own and some cosmetic methods might help.
11 citations
,
January 1989 Two patients had a unique form of trichothiodystrophy with reduced high-sulfur proteins in their hair.
7 citations
,
February 2017 in “The American journal of medicine” People often have iron deficiency after weight-loss surgery, which can cause symptoms like hair loss and dizziness, and iron levels should be tested to diagnose it.
6 citations
,
May 1993 in “Archives of Disease in Childhood” Children's hair loss can be caused by many factors, including autoimmune diseases, emotional stress, genetics, and infections, with treatment and prognosis varying.
5 citations
,
May 2019 in “Cureus” Taking biotin supplements can cause incorrect thyroid test results, leading to wrong diagnoses.
5 citations
,
January 2014 in “International Journal of Trichology” Hair loss on the lower legs is common in middle-aged men, usually harmless, and doesn't need treatment.
3 citations
,
November 2020 in “Cleveland Clinic Journal of Medicine” Eyelash loss can be a sign of thyroid problems.
2 citations
,
January 2019 in “Elsevier eBooks” Biotin supplements are unnecessary for most people but may help with certain conditions like biotin deficiency, brittle nails, and some hair loss.
2 citations
,
December 2018 in “International journal of current microbiology and applied sciences” The dog recovered from hypothyroidism and regrew its hair after two months of treatment.
2 citations
,
November 2018 in “Medunab” Low ferritin levels are linked to chronic hair loss in women.
2 citations
,
June 2018 in “Sudan journal of medical sciences” Low vitamin D levels can cause hair loss and supplements may improve it.
1 citations
,
May 2023 in “Journal of neuroendocrinology” DAVID syndrome is a condition with immune system and hormone deficiencies, needing early diagnosis to avoid serious complications.
1 citations
,
August 2022 in “International journal of biological and chemical sciences” Iodine-deficient diets and antithyroid substances affected rat growth and behavior, but most adapted with positive weight gain.
1 citations
,
September 2021 in “Biomedical & Pharmacology Journal” Reticulocyte hemoglobin content is the best indicator of iron deficiency in women with diffuse non-scarring hair loss.
1 citations
,
August 2012 in “Journal der Deutschen Dermatologischen Gesellschaft” A woman's hyperandrogenism was caused by a genetic mutation leading to non-classic adrenogenital syndrome.