The administration of combined oestrogen/progestagen oral contraceptives raises blood levels of many factors concerned with blood coagulation1–3 and increases the incidence of thrombo-embolism in healthy women,4 5 though the connection between these phenomena is obscure. Thrombo-embolism is also a post-operative complication, especially of pelvic surgery, and it seems quite likely that combined oral contraceptives may further increase the incidence of thrombosis after surgery. Prolonged rest in bed also predisposes to thrombosis and this risk too may be increased by such contraceptives. The incidence of thrombosis after surgery in women taking oral contraceptives is not yet known.
Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.