IUDs may prevent cervical cancer risk

Intrauterine devices (IUDs), considered as a safe and highly effective contraception method, may also offer protection against cervical cancer, says a recent study. According to the World Health Organisation (WHO), approximately 528,000 women were diagnosed with cervical cancer worldwide in 2012, and 266,000 women died from the disease making it the third-most-common cancer in women worldwide.

The WHO projects that by 2035 these numbers will climb to more than 756,000 and 416,000, respectively. The findings showed that using IUD can dramatically decrease the incidence of cervical cancer by a third.

“The possibility that a woman could experience some help with cancer control at the same time she is making contraception decisions could potentially be very, very impactful,” said lead author.

For women in developing countries, where cervical cancer prevention resources such as the human papillomavirus (HPV) vaccine or regular cervical screenings are scarce, a contraceptive that offers protection against cervical cancer could have a profound effect.

“A staggering number of women in the developing world are on the verge of entering the age range where the risk for cervical cancer is the highest — the 30s to the 60s.

“Even if the rate of cervical cancer remains steady, the actual number of women with cervical cancer is poised to explode,” author said. “IUDs could be a tool to combat this impending epidemic,” Dr. noted.

For the study, the team included data from 16 high-quality observational studies involving more than 12,000 women worldwide. As per some scientists, it is the placement of an IUD that stimulates an immune response in the cervix, giving the body an opportunity to fight an existing HPV infection that could one day lead to cervical cancer.

Another possibility may be that when an IUD is removed, some cervical cells that contain HPV infection or pre-cancerous changes may be scraped off.

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