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This review discusses the complexities of interpreting thyroid function tests, highlighting the challenges primary care providers face due to patient demand and misinformation, but reports no new results.

This study observed that pediatric patients with diffuse, non-scarring alopecia had significantly lower levels of zinc and folate compared to matched healthy controls, suggesting a possible link between these deficiencies and hair loss in children.

This case report illustrates that high-dose biotin supplementation can cause false thyroid function test abnormalities in vitro, emphasizing the need to assess biotin intake before testing.

This study observed that direct exposure to androgens in Western clawed frogs differentially affects thyroid receptor and deiodinase gene expression in male and female tissues, offering insight into sex-specific metabolic pathway activation.

In this study, researchers examined thyroid function and autoantibody levels in patients with alopecia areata and vitiligo, finding similar rates of thyroid dysfunction and autoantibody presence in both groups, with no significant differences based on ethnicity or gender.

This study found that patients with alopecia areata may have higher rates of autoimmune disorders, particularly thyroid dysfunction, compared to the general population.

This study found that inadequate ferritin levels, rather than haemoglobin levels, indicated iron deficiency in women with telogen effluvium, alopecia areata, and female pattern hair loss.

This study investigates differences in nutritional status, vitamin, and mineral levels between individuals with telogen effluvium and a control group, aiming to understand the nutritional factors involved in this condition.

In this study, nearly half of the female patients with androgenetic alopecia reported symptoms of hormonal disorders, but hormone test results did not show significant abnormalities.

This report emphasizes the importance of considering thyroid tuberculosis in the differential diagnosis of cervical masses, highlighting the role of biopsy and histopathological examination for accurate diagnosis and treatment.

This review discusses the importance of physical examinations in trichology, emphasizing their role in diagnosing conditions like alopecia and hair dystrophies, and reports no new clinical results.

The document concludes that more research is needed to confirm if blood tests for things like iron and vitamin D are helpful for hair loss from Telogen effluvium.

This study recommends limiting routine thyroid function screening to children with alopecia areata who have medical histories of Down syndrome, atopy, or family histories of thyroid disease.

In this study, the authors reported that taking 20 mg or more of biotin can interfere with thyroid function tests, potentially leading to false diagnoses of conditions like Grave's disease.

This study found that in male badgers, seasonal molting and hair growth are influenced by cycles of plasma testosterone and thyroxine, with hormones affecting the timing and progression of these processes.

This study observed that telogen effluvium was the most common form of acquired alopecia among females in a semiurban Indian population, with stress and chemical exposure as major exacerbating factors.

This study revealed that manual thyroid examinations in alopecia patients may uncover thyroid abnormalities undetectable by blood tests alone, but further research is needed to assess their clinical importance.

This article highlights the need for dermatologists to define evidence-based standards to provide high-value care and reduce unnecessary testing, as recommended by the American Academy of Dermatology.

This narrative review found a strong association between alopecia areata and autoimmune thyroid diseases, suggesting routine thyroid function and autoantibody screening could be beneficial for certain patients with extensive, recurrent, or early-onset alopecia areata.

This study observed that levothyroxine therapy in men with autoimmune hypothyroidism was less effective at reducing thyroid antibodies and hormone disruptions in those with early-onset androgenetic alopecia compared to those without hair loss.

This study reported that women with polycystic ovary syndrome had higher glypican-4 levels compared to controls, indicating its significant role in hormonal regulation associated with the condition.

This article discusses female pattern hair loss and concludes that the utility of lab markers for screening associated conditions remains unclear; no new clinical results are presented.

This study by a panel of 13 clinicians led to 22 consensus statements recommending approaches for diagnosing scarring and nonscarring alopecias, suggesting scalp biopsy for suspected scarring alopecias and specific serologic tests for nonscarring types like alopecia areata based on clinical presentation.

This correspondence outlines a research aim to evaluate the usefulness of laboratory testing for telogen effluvium to assist in forming evidence-based treatment guidelines, though results are not provided in the abstract.

This review discusses various causes and patterns of canine alopecia, noting that symmetrical and diffuse hair loss often indicates an endocrinopathy, and reports no new clinical results.

Small hormonal imbalances can cause significant health problems, so more sensitive testing for hormone-disrupting chemicals is needed.

This review discusses diagnostic approaches for women with diffuse, nonscarring hair loss and reports no new clinical results.

This article reviews dermatological manifestations of endocrine diseases in dogs, such as hypothyroidism and hyperadrenocorticism, but reports no new clinical findings.

This article reviews the relationship between hair loss and lithium but does not provide any new clinical findings.

This case report describes koebnerization-induced vitiligo in a woman following repeated eyebrow microblading, suggesting a link between the procedure and the phenomenon in susceptible individuals.