According to a new study, women with a hormone disorder called polycystic ovary syndrome (PCOS), and who also take birth control pills have double risk of blood clots.
[Read: How Safe are Birth Control Pills]
Dr. Christopher McCartney, associate professor at the University of Virginia School of Medicine in Charlottesville, said: "For many women with PCOS, (the risks) will be small. For some women, they might be high enough to say we really shouldn't use the Pill, such as for women over 35 who smoke."
On an average, three to five percent of women in the United States of America suffer from polycystic ovary syndrome, a considerable reason behind irregular periods, risk of obesity, hair fall, hypertension and diabetes, besides others.
Those women are often treated with contraceptives, which already comes with a warning of possible blood clots.
As PCOS puts women in a potential risk of developing heart diseases, further use of birth control pills can be fatal.
The study published in the Canadian Medical Association Journal revealed that obesity is also a major concern that is contributing to the risk.
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