Pulmonary embolism, even if it recurs for the second time, is treatable, but the approach should differ from the first recurrence. It's vital to determine the cause of the pulmonary embolism, although many patients with this condition do not have an identifiable cause. For such patients, long-term oral anticoagulants might be recommended. With long-term use of oral anticoagulants, the likelihood of thrombosis, especially in the venous system, significantly reduces. This means that the chance of recurrence in patients also decreases considerably. However, if the cause can be identified, it is better to address and eliminate it. For instance, if the cause is long-term use of oral contraceptives or the presence of varicose veins, these primary or secondary factors should be resolved. The treatment should not just focus on anticoagulation or thrombolytic therapy, as there could still be a possibility of a future pulmonary embolism recurrence.