was sind hb werte — when to see a doctor?

Hemoglobin (HB) values measure the oxygen-carrying protein in red blood cells. Normal ranges are roughly 13.5–17.5 g/dL for men and 12.0–15.5 g/dL for women (slight variations by lab). You should see a doctor if your HB is outside the reference range or if you experience symptoms like fatigue, pale skin, shortness of breath, dizziness, or palpitations. Low HB (anemia) may result from iron deficiency, blood loss, or chronic disease; high HB (polycythemia) can indicate dehydration, lung disease, or bone marrow disorders. A single borderline value is not an emergency, but medical follow-up is wise, especially if persistent or accompanied by symptoms. Always interpret HB in the full clinical context. Note: over-the-counter self-tests are not a substitute for professional diagnosis. Seek immediate care for acute chest pain or severe breathlessness.