Jaydess, the small hormonal IUD


JAYDESS® – the small and easy hormonal IUD

Most young women prevent pregnancy with the Pill or condoms. But the stresses of daily life sometimes mean forgetting to take the Pill, while the use of condoms can lead to unpleasant mishaps in the throes of passion. Both methods have known risks that increase the occurrence of unwanted pregnancy. The acceptance of hormonal IUDs (intrauterine devices) for young women and women who have never given birth is not yet widespread. But recently, a new IUD was specially developed for these target groups.
With the small Jaydess® IUD, young women now have a long-term method that lasts 3 years and is highly effective with a low hormone dosage.


How does Jaydess® work?

The Jaydess® hormonal IUD is an effective method for preventing unwanted pregnancies. It combines the advantages of an estrogen-free pill (lighter, pain-free menstrual period; no estrogen-related side effects), with those of conventional copper IUDs (safe and effective intrauterine protection for several years), making it a convenient and reliable method for long-term prevention.

This hormonal IUD has a small, soft, T-shaped plastic body. The arms of the T are flexible and allow the doctor to more easily insert it into the uterus, while ensuring a stable position in the uterus. A plastic sleeve on the leg holds the IUD’s active ingredient, the corpus luteum hormone “Levonorgestrel”. This hormone has been used in pills for many years and is well-tolerated. After insertion of Jaydess® , the levonorgestrel is slowly and evenly distributed in very small amounts directly into the uterus.

At the bottom of the IUD is an eye with two threads attached. These threads can be felt, allowing easy removal of the IUD by the doctor. Jaydess® lasts for 3 years, and is a highly effective contraceptive that needs no daily, weekly, or monthly reminders. It provides a daily hormone dose of 13.5 micrograms of levonorgestrel directly into the uterus – much lower than the Pill. The Pill does not work locally because the hormones must first be metabolized or circulate in the blood before they become effective.

From day one, the hormonal IUD is very effective in three ways:

  • It causes the natural mucous in the cervix to thicken into a barrier so that sperm cannot ascend to fertilize an egg in the uterus. This mucous is very difficult for germs and bacteria to penetrate, and thus provides some protection against infection.
  • The endometrium (mucous membrane that lines the inside of the uterus) is reduced and stays reduced, which is why menstrual periods with IUDs are considerably shorter and lighter. The endometrium may not even establish every month to implant a fertilized egg; therefore, some women using IUDs experience no bleeding
  • Any sperm that still reach the uterus are inhibited in their function and mobility by the released hormone levonorgestrel.

Grafik: www.hormon-spirale.info

All these contraceptive effects cease once the IUD is removed. Women can get pregnant in the first cycle after removal.

Comparing Intrauterine Jaydess® with Mirena®

The new Jaydess® IUD is about 4mm narrower and 2 mm shorter than its “big sister” Mirena®. However, their mode of action is similar.

Comparison Jaydess® Mirena®
Plastic frame: 28mm x 30mm 32mm x 32mm
Effect: Progestin is delivered directly into the uterus, resulting in thickening of the cervical mucous and reduction of the endometrium. Sperm are inhibited in their mobility and function. Progestin is delivered directly into the uterus, resulting in thickening of the cervical mucous and reduction of the endometrium. Sperm are inhibited in their mobility and function.
Total amount of hormonel: 13,5 mg 52 mg
Dosage / 24 hours: 13,5micrograms after 24 hours
5 micrograms after 48 hours
20 micrograms after 24 hours
10 micrograms after 48 hours


Visible on ultrasound: Yes No
Diameter of insertion aid 3,80mm 4,74mm
Efficacy 4 out of 1,000 women become pregnant within a year. 2 out of 1,000 women will become pregnant within one one year.
Menstrual period Periods become shorter and less painful; some initial spotting may occur.

13% of women using Jaydess no longer have menstrual periods.

Periods become weaker and less painful, some initial spotting may occur.
24% of women using Mirena no longer have menstrual periods.
Cost: € 500.- to € 600.-
Duration of use: 3 years 5 years

Advantages of Jaydess®

Women can expect an optimal contraceptive that is safe, easy to use, and well-tolerated. For young women with a smaller uterus and women who have not given birth, the Jaydess® hormonal IUD offers advantages because of its smaller size:

Reliably effective. he hormonal IUD provides very reliable protection against unwanted pregnancy with a minimal, localized hormone dosage. It is highly efficient regardless of a woman’s age and weight. Usage errors such as “I forgot” or “It’s too late now” are eliminated. Vomiting, diarrhea, or travel-related time delays have no influence on the effectiveness of Jaydess®.

Estrogen-free contraceptive. The IUD contains only one hormone, levonorgestrel. This hormone is also suitable for women who have an increased risk of thrombosis.

Low dose. Measurable hormone levels in the blood are several times lower than with the Pill, and few compatibility problems occur. Compared to the Mirena® IUD, detectability of the hormone in one’s system is reduced by up to 50%..

Painless Insertion. Due to its small size, insertion of the IUD is simple and quite painless.

Comfortable and imperceptible. The hormonal IUD allows sexual activity without worrying about possible adverse consequences, and free from unwanted interruptions. After insertion of a Jaydess® IUD, women need not worry about protection for three years.

Visible on ultrasound. With its silver ring inside a plastic sleeve, the doctor can clearly see the Jaydess® IUD in the ultrasound and distinguish it from other IUDs.

Can be removed any time. For young women who want effective prevention for only a limited period because they would like to have children in the near future, the IUD can be removed at any time, after which a pregnancy can occur immediately.

Can be used while breastfeeding. Since the IUD contains only progesterone, it can be used during lactation. The quality and quantity of breast milk are not affected.

Improved quality of life. Most women will appreciate the additional benefits offered by the Jaydess® IUD. It results in shorter and less painful periods. This usually reduces the amount of pain medication needed. Many women do not find it disturbing if their menstrual period disappears completely, provided they know this is completely medically safe.

Possible disadvantages of Jaydess®

The Jaydess® IUD is a hormonal contraceptive, and similar to the Pill, it can have unwanted side effects. The side effects are usually reduced compared to the Pill, because the IUD releases a very low dose of the hormone levonorgestrel directly into the uterus. Therefore, Jaydess® is suitable for women who have been on the Pill but suffered various side effects (such as weight gain).

What can occur in some cases after inserting an IUD?

Out of 100 women with a Jaydess® IUD:

  • Up to 6 women will expel the spiral after insertion. Increased bleeding can be an indication. For 94 out of 100 women, the spiral remains securely in the uterus until it is professionally removed by the doctor.
  • 1 to 10 women may experience depressive moods, migraines, nausea, hair loss, or chest pain. These symptoms do not occur in 90-99 women out of 100.
  • About 10 women may experience headache or abdominal pain, bleeding changes, and blemished skin. For young women who were taking the Pill as a remedy for acne or blemishes, and then switched to an IUD, the skin’s appearance may worsen. 90 out of 100 women will not have these symptoms.
  • Ovarian cysts may develop in 13 women, while 87 out of 100 will remain free of ovarian cysts. The contraceptive effect of Jaydess® relies on localized effects in the uterus; ovulation still takes place in women who have a hormonal IUD, and is generally unchanged from the normal release of an egg from a follicle in the ovary. Sometimes development of the follicle in the ovary is delayed and the maturation time prolonged, causing an enlarged follicle (follicular cyst). Such cysts occur in about 13% of women using Jaydess®, and are reported as an adverse effect along with other ovarian cysts. Most cysts cause no symptoms, but sometimes they can be accompanied by abdominal pain. In most cases, the enlarged follicles will return to normal on their own within two to three months. Very rare side effects may include ectopic pregnancy, inflammation, and injury to the pelvic area.

Safety and efficacy of Jaydess®

Hormonal IUDs are among the most reliable contraceptive methods currently available.

  • Of 1,000 women who use the Jaydess® IUD for one year, 4 get pregnant..

In comparison:

  • Of 1,000 women who use the Mirena IUD for one year, 2 get pregnant.
  • Of 1,000 women who are sterilized, 5 get pregnant within one year.
  • Of 1,000 women who use a copper IUD for one year, 8 get pregnant.
  • Of 1,000 women who use the Pill for one year, 90 get pregnant.
  • Of 1,000 women/couples who use condoms for a year, 180 get pregnant.

Source: www.contraceptivetechnology.org

In Austria, more than 200,000 women prevent pregnancy with an IUD – and it’s an increasing trend. Some women, after removal of their first IUD, have a second or third one inserted to ensure effective, very long-term prevention. Worldwide, an estimated 12 million women have used an IUD.

Insertion, monitoring, and removal of Jaydess®

After the woman receives a gynecological exam and counseling, the doctor can insert the IUD. Usually this is done at the start of a menstrual period, when the cervix is slightly open. Taking a painkiller and a prostaglandin tablet one hour before this minor procedure prepares the cervix and allows painless insertion.

The IUD is introduced via a thin insertion tube through the vagina into the uterus. After insertion, the removal thread is shortened. It should be long enough for the woman to feel it with her finger, but not by the partner during intercourse.

After 4-6 weeks, a check by the doctor is recommended. After that, an annual gynecological exam should include a routine check of the IUD.

After three years, the IUD must be removed – this can be done even when the woman is menstruating. A new IUD can be inserted at the same time, or whenever effective contraception is needed again.

Cost of the small IUD

The Jaydess® IUD provides 3 years of reliable contraception for the price of about € 500. Fees must be paid out-of-pocket in Austria, as health insurance companies do not provide a subsidy or reimbursement.

Although this seems expensive at first glance, when you average the cost over a period of 3 years, the IUD costs € 13,80. per month, making it cheaper than the cost of a contraceptive ring or patch. In addition, women can save money on tampons and pads due to lighter and fewer menstrual periods.