Intrauterine device is a small thing, inserted into woman's womb in order to prevent unwanted pregnancy.
Nowadays IUDs have become really popular, as they provide long-lasting effective birth control. It's especially good option for those, who don't want to swallow pills every day and feel better during condom-free intercourses.
There are two types of these devices.
Copper IUDs trigger inflammatory reaction in the womb lining, which has toxic influence on the sperm.
Hormonal devices release low amounts of progestin (synthetic analog for female reproductive hormone progesterone). As a result, uterine lining becomes too thin for fastening of the fertilized egg. In addition to this, progestin makes the cervical mucus thicker, preventing ovulation in this way.
Specialists say that T-shaped device is something more than only birth control method.
Recent researches found that using IUDs can decrease risks of getting cervical cancer.
This type of malignancy occurs, when abnormal cells tend to grow and divide on the lower part of the womb, called cervix. In most cases, cancer starts in transformation zone, where glandular cells (endocervix) meet squamous cells (exocervix).
According to the American Cancer Society's statistics, more than 13000 American women get diagnosis of cervical cancer each year. And more than 4000 women die from this disease annually.
Like in all cancers, exact reason for developing cervical neoplasm is still unknown. Genetic mutations, HPV infection, weak immune system, obesity and smoking were recognized as risk factors for this kind of malignancy.
Specialists say that IUDs don't protect you from sexually transmitted infection, particularly human papillomavirus (HPV), which has a close link with cervical cancer development.
It's not clear enough, how can intrauterine device avert growing cancerous cells in the cervix.
Medical professionals supposed that it's about low-grade sterile inflammatory process, inducted by IUD insertion. This probably activates local immune response in the mucous membrane.
Studies show that IUD exertion can change the likelihood of HPV infection to progress into the cervical neoplasm.
It's interesting that scientists found no difference in cancer protection effects between short-term and long-lasting use of devices.
However experts aren't sure that women should get IUD in order to prevent cervical cancer. More investigation is needed to prove this data.
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