The second common type was the spiral method which is based on hormones. This so-called intrauterine progesterone-releasing system (PRS). This spiral increases the proliferation of cells in the cervix, its mucous membrane becomes more viscous and forms a plug that blocks the further promotion of sperm to the cervical canal. If a woman has any complaint with hormonal health, the use of this type of spiral is also acceptable. This form of contraception is introduced in a short period of time up to one year.
In addition to the above funds, as well as the spirals, the mechanism of which is designed for prolonged use. She has the hormonal makeup. Such spiral is called intrauterine levonorgestrel-releasing system (LRS). This IUD (intrauterine device) designed to use up to 7 years. In the spiral contains a special valve, which is daily, throughout the period, produces in the uterine cavity a small quantity of a hormone, levonorgestrel (20 mcg total). Such effects reliably blocks the cervix from sperm getting inside.
When you select a spiral, you need to conduct a comprehensive survey on the subject of diseases such as postpartum endometritis, inflammatory diseases of the pelvic organs, liver disease, breast cancer, diseases of the cervix, urinary tract infections, increased and reduced pressure, jaundice and others. After the abortion should also postpone the installation of the helix from one to three months.
After installation of the helix for some time may experience discomfort in the genital area, dryness inside the vagina and the scarcity of monthly bleeding. All these side effects pass quickly and leave no unpleasant sensations. The spiral gives a 100% guarantee of protection from unwanted pregnancy for a long time, and so deservedly occupy the leading position on the market of contraceptives.