article_snippet.sent: On the leaflet that comes with the pills the pills says that one in 1,000 women experience problems with clotting.
article_snippet.sent: the contraceptive pill can increase the risk of blood clotting because the contraceptive pill contains a synthetic version of oestrogen which can very slightly thicken the blood, leading to clots.
article_snippet.sent: Although the risk of stroke in young women is generally low, pregnancy and contraceptive pills are both significant stroke risk factors, according to the Stroke Association.
article_snippet.sent: Oestrogen can make the blood more likely to clot - causing deep vein thrombosis (in the leg), as well as clots in the lungs or brain, causing a stroke.
article_snippet.sent: It has been linked to thrombosis and breast cancer.
article_snippet.sent: Research has suggested there is a slightly higher chance of being diagnosed with breast cancer, but this risk level is returned to normal after 10 years.
article_snippet.sent: One in 1,000 women who regularly take The pill are at risk of developing clots.