The American Society of Haematology (ASH) has released updated guidelines that change the ferritin levels used to diagnose iron deficiency. The goal is to reduce missed cases and enable earlier treatment. Under the new recommendations, adults are classified as iron-deficient when ferritin is 30 nanograms per milliliter (ng/mL) or lower, up from the previous 15 ng/mL threshold. This change aims to catch more cases of iron deficiency worldwide.
For children aged nine months to four years, the ferritin cut-off rises from 12 ng/mL to 20 ng/mL. This increase allows for earlier identification of deficiency in young patients. ASH notes that ferritin levels can be altered by inflammation or other illnesses. Clinicians will need to interpret results alongside additional tests and the patient's overall health.
The organization estimates that roughly two billion people worldwide live with iron deficiency, many of whom remain undiagnosed until symptoms worsen or progress to iron-deficiency anemia. High-risk groups, including pregnant women, menstruating women, individuals with gastrointestinal disorders, restrictive diets, or chronic illnesses, account for about 70% of undiagnosed cases.
The revised standards are intended to help clinicians identify low iron stores even when previous ferritin limits were not met. This could potentially shorten the period patients experience fatigue, weakness, and concentration difficulties. ASH stresses that the guidelines do not imply every case of tiredness is due to iron deficiency.
However, the guidelines provide updated criteria for health professionals to decide when further investigation is warranted. People who are at risk are encouraged to discuss ferritin testing with their healthcare providers. Those with persistent fatigue, weakness, or dizziness should seek medical advice rather than attributing symptoms solely to stress or lack of sleep.
The American Society of Haematology made the announcement on October 11, 2026, according to a report by Kenya Today Newsroom. The changes are expected to have a significant impact on the diagnosis and treatment of iron deficiency worldwide.
The updated guidelines are a significant step towards improving the detection and treatment of iron deficiency. By revising the ferritin thresholds, ASH aims to enable earlier identification and treatment of the condition, potentially improving the health outcomes of millions of people worldwide.
Key points
- The American Society of Haematology has revised ferritin thresholds to improve detection of iron deficiency.
- The new guidelines raise the adult ferritin cut-off to 30 ng/mL and the child threshold to 20 ng/mL.
- The changes aim to reduce missed cases and enable earlier treatment of iron deficiency worldwide.
