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It has been recognized for over 50 years that combined oral contraceptives (COCs) are also capable of offering health benefits beyond contraception through the treatment and prevention of several gynaecological and medical disorders.
Hormonal contraception methods are consistently linked with the risk of developing blood clots. However, the risk does vary depending on the hormone type or birth control method being used. Types. There are two main classes of hormonal contraceptives: combined contraceptives contain both an estrogen (usually ethinylestradiol) and a progestin.