Combined hormonal contraceptives and venous thromboembolism: review confirms risk is small

A review of the latest evidence on the risk of thromboembolism advises to consider risk factors and remain vigilant for signs and symptoms. - the risk of blood clots with all low-dose CHCs is small - there is good evidence that the risk of venous thromboembolism (VTE) may vary between products, depending on the progestogen - CHCs that contain levonorgestrel, norethisterone, or norgestimate have the lowest risk of VTE - the benefits of any CHC far outweigh the risk of serious side effects - prescribers and women should be aware of the major risk factors for thromboembolism, and of the key signs and symptoms