wann hört haarausfall nach eisenmangel auf — when to see a doctor?

Hair loss due to iron deficiency (telogen effluvium) typically stops 2–4 months after iron stores are replenished (ferritin >30–50 ng/mL). The exact timeline depends on severity, underlying cause, and individual regrowth capacity. See a doctor if hair loss persists beyond 3 months, worsens, or is accompanied by fatigue, pallor, or poor concentration. A blood panel including ferritin, transferrin saturation, and CRP can confirm iron deficiency and rule out other causes (thyroid, hormones, stress). Consumer tests like My VitalCheck can flag low iron but cannot diagnose. Safety note: self-supplementing without testing may be harmful if undiagnosed hemochromatosis is present. Evidence: human-strong.