Attributes Commonality is rare Further Tests Ferritin Concentration Ferritin (Increased) Iron Concentration Iron (Increased) Idiopathic pulmonary haemosiderosis Idiopathic pulmonary haemosiderosis is a condition affecting the lungs which results in bleeding from tiny alveolar capillaries . Background Idiopathic pulmonary haemosiderosis is an uncommon or rare condition in which bleeding in the lungs