About the intrauterine device
Most modern coils are T-shaped. They are very small - no longer than a matchbox. Any intrauterine device can easily fit in the female palm, which is not surprising, because the uterus itself in a non-pregnant woman is no larger than a clenched fist. modern spirals usually made of copper or plastic; intrauterine devices with silver are somewhat less common. Silver coils are believed to prevent the development of certain inflammatory diseases and enhance contraceptive action, but, of course, they cannot protect against sexually transmitted diseases.
There are threads at the end of the intrauterine device, thanks to which, when the time comes, the doctor can easily remove the device from their uterus. Many women feel for these threads on their own from time to time to make sure that the spiral has not shifted. Just because you can feel the threads doesn't mean you can remove the IUD yourself.
In some cases, a woman's partner can feel these threads during sexual contact. Usually this is not a problem, but if a man is concerned about this, talk to a gynecologist - he can shorten the threads a little.
The intrauterine device prevents sperm from penetrating from the uterus into the fallopian tubes; it thickens the cervical mucus and also affects the endometrium, making it less likely that a fertilized egg will implant if conception does occur. An intrauterine device with silver and copper also makes sperm cells less mobile - this also reduces the likelihood of conception. 
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Silver spirals
The intrauterine device with silver is far from a new contraceptive. Back in 1920, the German scientist Ernst Grafenberg, the "discoverer" of the famous G-spot, created a silver wire intrauterine device that worked for five years and, unlike the first spirals, did not provoke a uterine infection.
Modern intrauterine devices with silver in their design, size and properties are no different from traditional copper-containing intrauterine devices and just as effectively protect against the onset unwanted pregnancy, inhibiting the motor function of spermatozoa. The use of silver in the manufacture of copper-containing intrauterine devices is primarily due to the need: copper wire, a structural element of the spiral, corrodes when the spiral is inserted into the uterus and loses its protective contraceptive properties. That is why modern intrauterine devices provide copper wire with a silver core, the thickness of which can be up to about a third of the total diameter of the wire. The silver core protects the copper wire of the intrauterine device from corrosion, reducing the risk of damage to the structure of the device, since silver is a noble metal that is not affected by organic acids found in uterine fluids.
Intrauterine devices with silver have another important advantage: such spirals, due to the content of silver ions, have not only a high contraceptive effect, but also an anti-inflammatory effect. In fact, intrauterine devices with silver control and restrain inflammatory process in the mucous membrane lining the uterus from the inside, which can provoke the installation of a spiral in the uterus.
Intrauterine devices with silver are contraindicated in cases where there are any inflammatory diseases pelvic organs, infections of the reproductive system, postpartum endometriosis 
, cervical dysplasia 
(an abnormal growth of cells in the tissues of the cervix).
The female contraceptive spiral "Vector-Extra" KVMK-AgCu-150/250 is a modern ring-shaped contraceptive containing copper and silver as active additives, intended for long-term contraception and especially recommended for women with a high risk of IUD expulsion.
The intrauterine annular spiral "Juno" "Bio-T Ag" from the Belarusian medical enterprise "Simurg" is a modern contraceptive designed to protect against unwanted pregnancy for 5 (7) years. The shape of the spiral and its possibility individual selection in size provide reliable fixation of the IUD in the uterus and reduce the risk of its spontaneous expulsion.
Intrauterine device from MP "Simurg" (Belarus) "Yunona" "Bio Multi Ag" is a modern contraceptive that can provide protection against unwanted pregnancy for 7 years. Due to the shape and size of the F-shaped spiral with silver, it is possible to reduce the likelihood of spontaneous expulsion of the IUD.
Spiral "Vector Extra" AgCu 150/250 F - intrauterine F-shaped contraceptive latest generation, containing copper and silver as active additives, providing high level protection against unwanted pregnancy for 5 years from the date of installation. The IUD is suitable for most women, and can be used in cases of high risk of spontaneous expulsion.
Women's intrauterine device "Vector Extra" AgCu 150/250F PK - F-shaped IUD of the latest generation, containing copper and silver, which provide a high level of protection against pregnancy for 5 years, as well as propolis and calendula extract, which exhibit an anti-inflammatory effect during the first three weeks of contraception.
Intrauterine device (IUD), spiral "Vector Extra" AgCu 150/250T is a modern contraceptive containing as active ingredients copper and silver and capable of providing a high level of protection against unwanted pregnancy for 5 years.
Intrauterine device "Vector Extra" Ag 400T PC - belongs to the category of biologically active contraceptives containing silver and extracts medicinal plants and recommended for use in case of a high risk of developing inflammatory complications of intrauterine contraception.
Intrauterine device "Vector Extra" Ag 400T PC is a contraceptive containing silver and recommended for use by women who need high degree protection against unwanted pregnancy for 7 years. The absence of copper in the IUD helps to avoid complications in the presence of an allergy to this metal.
Intrauterine device (IUD), spiral "Vector Extra" AgCu 150/250T PC, contains copper, silver and medicinal components and is recommended for long-term contraception for women who have a high risk of inflammatory complications when using the IUD.
contraceptive spiral"Vector Extra" Ag 400F PC is an intrauterine contraceptive of the latest generation, the biological activity of which is provided by the content of silver, propolis and calendula extract. The IUD guarantees a high level of protection against pregnancy for 7 years, has an anti-inflammatory and antioxidant effect.
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Silver intrauterine contraceptive in fact, it is a copper-silver spiral - an intrauterine device in which silver is presented in the form of a copper-coated rod.
Copper-silver intrauterine devices are rightfully considered one of the most effective. The action of the IUD is provided by a mechanical effect on the internal mucous membrane of the uterus, leading to a change in its structure and the creation of conditions unacceptable for the implantation of the ovum and its full development.
Copper, which is part of the silver spiral, and intrauterine contraceptives have a fairly large percentage of inclusion of this metal, has a toxic effect on spermatozoa. A decrease in the activity of spermatozoa, in turn, leads to a decrease in the fertilizing ability of the seminal fluid and enhances the effect of the IUD as a foreign body.
In women's spirals from pregnancy, silver appeared not by chance. Studies have shown that diffusion occurs at the boundary of the copper-silver layers with the formation of an intermediate layer of variable composition. Silver "takes the hit" and inhibits the oxidation of copper, which is part of the contraceptive. Due to this, the amount of copper ions entering the woman's body is dosed, and the service life of the IUD is increased to 7 years compared to five years of "usefulness" of pure copper spirals.
Benefits of Silver Navy
1. They are the most effective
2. They provide protection against pregnancy for up to 7 years
3. Most of them are in the middle price category
4. They are varied in form.
Among the Navy with silver you can find:
T-shaped spirals, suitable for most women.
F-shaped spirals, they are the Navy in the form of an anchor.
Ring-shaped spirals, allowing to provide protection for women with a high risk of expulsion, spontaneous expulsion of the IUD.
Indications for the use of silver IUDs:
The need for reliable protection against pregnancy for 5-7 years. The intrauterine device can be removed before the end of its service life if a woman wants to have a child or use other methods of contraception.
Presence of contraindications for use hormonal contraception, including forgetfulness or inability to adhere to the birth control pill regimen.
Contraception after childbirth and abortion. IUD with silver can be installed in the first months after childbirth in the absence of menstruation. After an abortion, the IUD can be inserted immediately after the termination of the pregnancy.
Contraindications for the use of silver IUDs
Attention! The use of an IUD with silver is contraindicated in case of intolerance to the metal. Most often, it manifests itself in the process of wearing silver jewelry in the form of dark stripes or a rash on the skin. When using a silver IUD, allergies to silver and copper can cause inflammation, prolonged periods, intermenstrual spotting, and abdominal pain.
A spiral is a method of contraception that is used to prevent unwanted pregnancy. Such an effect of these devices is explained by the active metal ions that are present in them.
In addition to the standard medical types there is a line made from noble metals. This is a silver spiral intrauterine, as well as gold. Naturally, the price of this contraception will be an order of magnitude higher, but it fully justifies itself.
The use of silver
This metal is characterized by antibacterial and disinfectant effect, which has a positive effect on female body. Silver has an inflammatory effect and can prevent various pathologies. This metal acts on spermatozoa, protecting the uterus from unwanted conception. As a result of the use of silver intrauterine spirals, spermatozoa become passive and die on the way to the uterus.
To date, there are many intrauterine devices using this metal, which can be made of pure silver or with copper. This type of contraception has many advantages.
Advantages of silver spirals
- efficiency is about 98%;
- prevention of inflammation in the uterus;
- contraceptives with silver are not oxidized by organic substances that are present in the female body.
Cons of intrauterine contraceptives made of silver
- the contraceptive cannot protect against infections and STDs;
- women who have not given birth should not use these devices;
- periods may be more painful and heavy.
A spiral with the use of silver will be an ideal option for those women who have a permanent sexual partner. Before installing a contraceptive, it is necessary to be fully examined to exclude the presence of pathologies, as well as pregnancy.
The use of gold
Due to the fact that most metals tend to oxidize, a gold coil was made as an improved version. The main advantage of this noble metal is compatibility with human body. Also, the metal does not cause allergic reactions.
Just like silver, contraceptives with gold are characterized by an anti-inflammatory effect. The gold intrauterine device can be used for several years without affecting the woman's reproductive capacity.
The structure of contraceptives with the use of gold is no different from the standard ones. The shelf life of these devices is about seven years. Efficiency reaches 99%, but the main disadvantage is, perhaps, the cost. Numerous reviews suggest that it is better to purchase a reliable metal coil and not worry about possible problems, since the risk when using this type of contraception is minimal.