{"count":1,"index":{"built_at":"2026-07-27T18:31:39.985639+00:00","public_records":55311,"revision":"94848de319fc8437625c8f33"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Lay opinion vs evidence: Haarausfall Labor"},"results":[{"answer":"Lay opinion often holds that a simple lab test or DNA analysis can pinpoint the exact cause of hair loss. The reality is more nuanced. Certain blood tests – such as ferritin (iron stores), vitamin D, zinc, thyroid function (TSH, fT3, fT4), and sex hormones (e.g., DHT) – can provide useful clues for diffuse hair loss, with moderate to strong evidence for iron deficiency and thyroid disorders. However, direct-to-consumer genetic tests for hair loss (e.g., variants in the androgen receptor gene AR or SRD5A2) are a different story. The evidence is weak: effect sizes are small, replication is inconsistent, and individual predictive value is low. Hair loss is multifactorial – genetics, hormones, nutrition, stress, medications, and aging all play a role, and no single test can capture that complexity. In short, some lab tests are evidence-based and clinically valuable, but most genetic 'hair loss tests' overstate their utility. A thorough medical evaluation remains essential.","area":"gesundheit","canonical_id":"gesundheit:canonical-058b0f2a5825044828fe7476","id":"public-53a2c6be5d853e76d3e751fd","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Lay opinion vs evidence: Haarausfall Labor","score":42.18827641,"snippet":"Lay opinion often holds that a simple lab test or DNA analysis can pinpoint the exact cause of hair loss. The reality is more nuanced. Certain blood tests – such as ferritin (iron stores), vitamin D, zinc, thyroid function (TSH, fT3, fT4), and sex hormones (e.g., DHT) – can provide useful clues for diffuse hair loss, with moderate to strong evidence for iron deficiency and thyroid disorders. However, direct-to-consumer genetic tests for hair loss (e.g., variants in the androgen receptor gene AR or SRD5A2) are a different story. The evidence is weak: effect sizes are small, replication is inconsistent, and individual predictive value is low. Hair loss is multifactorial – genetics, hormones, n","sources":[],"title":"Lay opinion vs evidence: Haarausfall Labor","url":"https://tikki.wiki/wissen/gesundheit/frage/public-53a2c6be5d853e76d3e751fd/lay-opinion-vs-evidence-haarausfall-labor/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}}],"schema_version":"tikki.search-response.v1"}