January 2022 in “International Journal of Medicine in Developing Countries” Many patients with hair loss had low iron and vitamin D levels, but thyroid issues were not common.
April 2022 in “PANACEA JOURNAL OF MEDICAL SCIENCES” People with both obvious and not-so-obvious underactive thyroid issues often have higher levels of the hormone prolactin.
November 2023 in “International Journal of Trichology” No significant link between hair loss and iron or thyroid levels was found, but checking for deficiencies might still be useful.
September 2021 in “Journal of pharmaceutical research international” The conclusion is that hirsutism is strongly linked to PCOS and higher levels of certain hormones, but not to DHEAS, prolactin, cortisol, or TSH.
April 2023 in “Clinical Chemistry and Laboratory Medicine” The document concludes that inflammation markers can be used in diabetes, vitamin D3 affects immune pathways, hyperthyroidism changes hormone levels, androgen levels help diagnose Adrenocortical Carcinoma, erectile dysfunction is linked to diabetes, hypogonadism is common in HIV-infected males, and hormones can be biomarkers for various conditions.