Trigger Shot: Its Role in IVF Treatment

Trigger shot, is an important application in IVF treatment and stimulates the maturation of eggs. In every menstrual cycle, one of a woman’s eggs reaches a certain maturity and cracks on average after 14 days, releasing a cell called an oocyte. However, some women may experience problems in this process, and in such cases the trigger shot comes into play. In women experiencing ovulation problems, the trigger shot is used for ovulation induction. This injection is one of the assisted reproductive techniques to increase the chance of pregnancy.

What Is a Trigger Shot?

What is a trigger shot? This injection is a hormone-containing shot applied to mature the egg cell that grows in the natural cycle but does not rupture. The trigger shot is used to stimulate the ovaries and enlarge the follicles. After the application, sexual intercourse is recommended within 36–48 hours. Ovitrelle and Pregnyl are among the commonly used trigger shot medications.

When Is the Trigger Shot Given?

This injection is administered according to the schedule determined by the gynecologist. The specialist monitors follicle development with ultrasonography for egg tracking and gives the patient an appointment for application at the maturation stage. Egg triggering The desired maturity is generally between 16–20 millimeters. If necessary, egg-stimulating medications such as FSH and LH may also be used. In women with polycystic ovary syndrome, trigger shot application should be performed more carefully.

Pregnancy Rate with a Trigger Shot

The pregnancy rate with a trigger shot varies for each couple. This injection offers an option for those who cannot conceive naturally. By triggering the LH hormone, it creates a situation similar to the natural pregnancy process. The ruptured eggs pass into the fallopian tubes within 2–3 days and move toward the uterus. However, although sexual intercourse is recommended during this process, there is no guarantee of pregnancy. Couples are advised to have regular sexual intercourse within 24–36 hours after the trigger shot. The rate of those who become pregnant with a trigger shot depends on factors such as ovarian reserve and sperm quality.

Symptoms After the Trigger Shot

Groin pain after the trigger shot application is normal. This pain may be accompanied by ovulation symptoms such as light-colored discharge, an increase in body temperature, and breast tenderness. Among the pregnancy symptoms after the trigger shot are also symptoms such as absence of menstrual bleeding, nausea, vomiting, and dizziness.

Trigger Shot Application Stages

How is the trigger shot administered? The injection application is usually performed in a clinic or hospital setting. However, in necessary cases it can also be done at home. How is the insemination injection administered? The injections are obtained from pharmacies with a cold pack and should be stored in the refrigerator until the time of application. Where is the trigger shot injected? The steps to be considered during the application are as follows:

1. Hands should be washed thoroughly.
2. The injection area should be cleaned with alcohol. Where is the abdominal injection given? It is usually administered to the abdominal area.
3. The injection should be held upright and the tip arranged to allow air.
4. The skin should be gently grasped, and the injection should be administered at a 90-degree angle. Subcutaneous or intramuscular injection may be performed.
5. After the procedure, pressure should be applied with gauze and waited for 10 seconds.

Side Effects of the Trigger Shot

Trigger shot side effects are rare because it contains natural hormones. However, risky conditions such as ectopic pregnancy may develop in some patients. Additionally, the following side effects may also be observed:

• Rapid weight gain
• Bloating
• Stomach pain
• Fatigue
• Pain and redness at the application site

Recommendations After the Trigger Shot

Sexual intercourse should occur within 36 hours after the injection application. Alternatively, egg retrieval (OPU) procedures may also be performed. Male sperm can remain alive for 72–96 hours, so timing is important to increase the chance of pregnancy.How many days after the trigger shot should a test be done? Generally, it is recommended to perform a pregnancy test 14 days after the injection application. Pregnancy status is monitored with hormone levels and ultrasonography follow-ups.Trigger shot How many times is it administered? How many days does its effect last? It is usually administered once per cycle and its effect lasts 24–36 hours. However, in some cases, the injection application may be repeated by using additional medications such as GnRH analogs.If you are considering having a baby, you can apply to Fertijin IVF Center for detailed information about the trigger shot and other treatment options. The most suitable treatment methods for you will be determined with a gynecological examination. For couples experiencing infertility problems, the trigger shot is a promising treatment option. What should be done for ovulation in women? Healthy nutrition, regular exercise, staying away from stress, and applying the trigger shot at the right time are important. Problems such as pituitary gland disorders and menstrual irregularities should also be treated. Thus, the chance of pregnancy can be increased.