Another study conducted on the link between Yaz birth control pills and blood clots is proving yet again that the pills cause patients to develop dangerous blood clots that can lead to other conditions.

This newest study, in which researchers analyzed data collected from 330,000 Israeli women, discovered that oral contraceptives containing the synthetic progestin drospirenone (the main medicinal ingredient in Yaz and Yasmin) were much more likely to cause patients to develop blood clots. The study found that a little bit more than six patients developed the venous blood clots for every 10,000 users every year that the study took place. That may not sound significant, but it should be noted that the risk was increased by 43 percent to 65 percent in women that took the Yaz or Yasmin when compared to those that took other birth control pills.

When you look at the risk factor alone, it shows that 8-10 women developed blood clots for every 10,000 women that took the pills each year. According to Dr. Susan Solymoss of McGill University in Montreal, “it’s important to remember that all oral contraceptives are associated with a risk of blood clots.”

Solymoss also suggests that women that want to take birth control talk to their doctors so that they can talk about the real benefits-to-risk ratio involved. Yaz and Yasmin have long been known to cause severe adverse side effects like blood clots that can lead to pulmonary embolisms. Despite all of the studies that show how dangerous the pills are, Bayer continues to defend the pills by claiming that they are no more dangerous than any other birth control pill. But all of the studies can’t be wrong, and many doctors and patients alike are hoping that Yaz and Yasmin, as well as other drosperinone-based birth control pills, are recalled. This newest study is just adding more fuel to the fire of accusations against the dangers of Yaz, and it certainly can’t hurt the credibility of Yaz lawsuit plaintiffs.