Combined oral contraceptives (OCs) are a common method of contraception; however, they are associated with a twofold to sixfold increased risk of venous thrombosis (VT). The association between estrogen-containing OCs and VT is well established. After the first generation progestogens, new progestogens were developed. However, the risk of VT is higher for users of OCs with third generation progestogens than for those using second generation progestogens. We experienced a patient, a 25-year-old young woman with chest pain after taking third generation OCs. We performed chest computed tomography (CT) and lower extremity venogram CT. She was diagnosed with a pulmonary thromboembolism and deep vein thrombosis. She was treated with low molecular weight heparin and warfarin for six months. We report on this case with a review of the relevant literature.

• 이의신(광주기독병원 호흡기내과) | Ui Sin Lee
• 김무웅(광주기독병원 호흡기내과) | Moo Woong Kim
• 류수정(광주기독병원 호흡기내과) | Soo Jung Rew
• 은서준(광주기독병원 호흡기내과) | Seo Joon Eun
• 박찬우(광주기독병원 호흡기내과) | Chan Woo Park
• 정종필(광주기독병원 호흡기내과) | Jong Pil Jeong Corresponding author
• 고영춘(광주기독병원 호흡기내과) | Young Choon Ko