Schilddrüsen-TSH Wert Selbsttest: when to see a doctor?

A TSH self-test (e.g., from MyBody-X) can provide a hint about possible thyroid dysfunction but does not replace a medical diagnosis. The normal range is typically 0.4–4.0 mIU/L, though it may vary by lab and age. You should see a doctor if your TSH is outside this range—especially if it's above 4.0 mIU/L (suggesting hypothyroidism) or below 0.4 mIU/L (suggesting hyperthyroidism). Even with a normal TSH, persistent symptoms like fatigue, weight changes, hair loss, palpitations, or cold intolerance warrant a medical check. The self-test is not a medical device and can be affected by time of day, diet, or medications. Always confirm abnormal results with a venous blood draw and discuss them with a healthcare professional. Evidence: human-strong (standard medical practice).