Abstract
A heparin calcium self-injection at home has been covered by insurance in Japan since January 2012. A big burden of going to the hospital of twice a day was reduced for pregnant women for whom warfarin could not be used for thromboprophylaxis or the patients for whom warfarin could not be used for other reasons. Patients with thrombotic disorders and those with venous thromboembolism are able to use self-injection therapy. I hope to carry out the right usage thoroughly and to try for safe management.