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GlossaryThyroid Function Tests

measure thyroid hormone levels to assess gland performance

Thyroid Function Tests (TFTs) are a series of blood tests used to evaluate how well the thyroid gland is working. These tests typically measure levels of thyroid hormones such as Thyroxine (T4), Triiodothyronine (T3), and Thyroid-Stimulating Hormone (TSH). Abnormal levels can indicate conditions like hypothyroidism or hyperthyroidism, which can affect various bodily functions, including metabolism and hair growth.

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research A Hospital-Based Cross-Sectional Study Evaluating Hemoglobin, Iron Profile, and Thyroid Function Tests in Women with Telogen Effluvium, Female Pattern Hair Loss, and Alopecia Areata

1 citations , April 2021 in “Nepal journal of dermatology, venereology & leprology”

Iron profile tests are recommended for women with hair loss, as haemoglobin levels alone are not reliable.

research The Role of Micronutrients and Thyroid Function Tests in Pediatric Hair Loss

September 2025 in “Online Türk Sağlık Bilimleri Dergisi”

Low zinc and folate levels are linked to hair loss in children.

A Comprehensive Investigation of Biochemical Status in Patients with Telogen Effluvium: Analysis of Hb, Ferritin, Vitamin B12, Vitamin D, Thyroid Function Tests, Zinc, Copper, Biotin, and Selenium Levels

research A Comprehensive Investigation of Biochemical Status in Patients with Telogen Effluvium: Analysis of Hb, Ferritin, Vitamin B12, Vitamin D, Thyroid Function Tests, Zinc, Copper, Biotin, and Selenium Levels

August 2024 in “Journal of Cosmetic Dermatology”

Telogen effluvium is linked to deficiencies in iron, vitamin B12, and thyroid function.

research Results of Complete Blood Cell Count, Fasting Blood Sugar, Rheumatoid Factor, C-Reactive Protein, Antinuclear Antibody, and Thyroid Function Tests in Patients with Alopecia Areata

April 2011 in “Medical Journal of Tabriz University of Medical Sciences and Health Services”

Many patients with Alopecia Areata have underlying autoimmune disorders, especially thyroid issues.

research Screening Guidelines for Thyroid Function in Children With Alopecia Areata

35 citations , October 2017 in “JAMA dermatology”

Children with alopecia areata should only have thyroid screening if they have Down syndrome, a history of atopy, family history of thyroid disease, or signs of thyroid problems.

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community What Private blood test should I take?

in Finasteride/Dutasteride 9 upvotes 1 year ago

A user in the UK seeks advice on blood tests before starting Finasteride and Minoxidil for hair loss. Recommended tests include thyroid function, hormone levels, liver and kidney function, and vitamin and mineral levels.

community Female, 27 years old, shedding/ balding despite being on what is considered to be a effective treatment plan for AGA. Considering Dut (oral) . Please help.

in Finasteride/Dutasteride 27 upvotes 1 year ago

A 27-year-old woman with androgenic alopecia is losing hair despite using oral minoxidil and spironolactone, and is considering dutasteride. She is exploring causes like stress and medication side effects, planning tests, and considering treatment changes.

community MY Hair Loss Treatment Summary

in Treatment 9 upvotes 1 year ago

The conversation is about various hair loss treatments, including finasteride, minoxidil, RU58841, and natural supplements like saw palmetto and pumpkin seed oil. It also covers methods to improve blood circulation, nourish hair follicles, and address underlying health issues like vitamin D deficiency and high cortisol levels.

community Important blood values on Dut?

in Research/Science 6 upvotes 6 days ago

The conversation is about a user planning a blood test to monitor health while on hair loss treatments: Finasteride, Minoxidil, and Dutasteride. Recommendations include testing for androgens, thyroid function, micronutrients, and basic health markers, with additional suggestions for PSA, prolactin, and estradiol.

community 21M. Dad has full hair, but Maternal Uncle is bald

in General 200 upvotes 4 days ago

A 21-year-old is experiencing hair loss and is considering using Minoxidil and Finasteride, but is concerned about lifelong dependency and seeks advice on permanent solutions. They are advised to act quickly, consider additional treatments like Dutasteride, and get blood tests to rule out other causes.

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