An absorbable iron alloy stent. The stent comprises an iron alloy base and a degradable polymer in surface contact with said base. The degradable polymer has a weight-average molecular mass of between 20,000 and 1,000,000 and a polydispersity coefficient of between 1.0 and 50. Once the iron alloy stent is implanted into a body, the degradable polymer degrades and produces carboxyl groups. Once the iron alloy stent is implanted into a body, the effects of corrosion by means of oxygen absorption enable the stent both to function initially as a mechanical support and then to degrade gradually, the amount of hydrogen produced during the degradation process not reaching levels that could lead to a risk of air embolism.