IVF injections and stimulation: what this treatment is
In a natural cycle the body matures one egg. IVF needs several, because not every egg fertilises and not every embryo develops. Pharmacological stimulation is the part of the cycle in which hormone IVF injections are used to make a group of follicles grow together, so that more than one mature egg can be collected. It is the phase that most patients worry about — the daily injections, the scans and the side effects — and it is also the phase most often planned in two countries, with the early part at home and the final days abroad.
This page covers the stimulation itself. For the whole cycle, from egg collection to embryo transfer, see IVF and ICSI in Turkey; for the laboratory step that follows, see ICSI. Stimulation at our partner hospital starts from €1,100, and the exact figure depends on the protocol and on what is included, which the quote must state in writing.
IVF drugs and IVF medication: what is used and why
The IVF drugs fall into three groups, and a protocol combines them in a different order for each patient.
- Gonadotrophins — follicle-stimulating hormone (FSH), sometimes with luteinising hormone (LH) activity — are the main IVF medication. They are given as a daily subcutaneous injection with a pen, usually for 8–14 days.
- Drugs that stop the body ovulating early: a GnRH antagonist, started after a few days of stimulation, or a GnRH agonist, started earlier in a long protocol.
- The trigger: a single injection of hCG or a GnRH agonist that finishes egg maturation about 34–36 hours before egg collection. The timing is exact, which is why the last days of the stimulation cannot be moved.
After egg collection, progesterone, as pessaries, gel or injections, supports the womb lining before embryo transfer. Your own protocol depends on age, the AMH level and antral follicle count on ultrasound, body weight and how you responded in earlier cycles.
Which stimulation protocol: antagonist, long or mild
The table sets out the usual options. The choice belongs to the fertility specialist, not to the price list.
| Protocol | How it works | Usually considered when |
|---|---|---|
| Antagonist | Gonadotrophins from day 2–3 of the period; an antagonist added after about 5 days | Most first cycles; the trigger can be switched to a GnRH agonist, which lowers the OHSS risk |
| Long agonist | Down-regulation for about two weeks first, then gonadotrophins | Some patients with endometriosis or an irregular response; longer, with more injections |
| Mild or minimal | Lower doses or oral drugs such as clomifene or letrozole | Lower ovarian reserve or a wish to use fewer drugs; fewer eggs per cycle |
| Natural cycle | No stimulation, one egg collected | Rarely; repeated cycles are usually needed |
How IVF in Turkey runs: monitoring, trigger and egg collection
Stimulation begins on day 2–3 of the period. Between days 5 and 7 a scan and blood test check the follicles and oestradiol, and the dose is adjusted; scans then follow every 1–3 days. When the leading follicles reach about 17–18 mm, the trigger is given, and egg collection follows 34–36 hours later under sedation, in about 15–20 minutes. Most women go home within a few hours. The eggs are fertilised by IVF or ICSI, and the embryos are transferred fresh or frozen; see embryo transfer.
Turkish regulation allows IVF for married couples using their own eggs and sperm, and donor eggs or sperm are not permitted. Ask the clinic about this early if you are single or planning to use donor gametes.
What does IVF stimulation cost, and what is included?
IVF stimulation in Turkey starts from €1,100 at our partner hospital. The table gives approximate ranges for a full private cycle with stimulation drugs, to put the figure in context. They vary by clinic, drug doses and add-ons, and each figure must be confirmed in a written quote.
| Country | Typical private IVF cycle with drugs (approximate) |
|---|---|
| Turkey | stimulation from €1,100; a whole cycle is higher, depending on the package |
| United Kingdom | about £5,000–£8,000 for a cycle, plus £1,000–£2,500 for drugs |
| United States | about $12,000–$25,000 for a cycle, drugs often billed separately |
| Germany | about €3,000–€6,000, with drugs usually extra |
Before you compare, ask three things: whether the drugs are in the price or bought separately; how many monitoring scans and blood tests are included; and what happens if the cycle is cancelled for a poor response or to avoid OHSS. A written quote answers all three.
Risks of IVF injections: OHSS and the common side effects
Common effects of the drugs are bloating, breast tenderness, mood changes, headache and bruising at injection sites. These settle after egg collection.
Ovarian hyperstimulation syndrome (OHSS) is the main risk. The ovaries over-respond and fluid shifts into the abdomen and sometimes the chest. The Royal College of Obstetricians and Gynaecologists (RCOG) describes mild OHSS as common, moderate OHSS as less so, and severe OHSS, needing hospital care, as uncommon. Young age, a high AMH, polycystic ovaries and a very high oestradiol raise the risk. A careful protocol lowers it: lower starting doses, an antagonist cycle with a GnRH-agonist trigger, and freezing all embryos instead of a fresh transfer. Call the clinic the same day for rapid weight gain, severe abdominal pain, vomiting or breathlessness.
Ask your doctor about your own history, especially if you have had a blood clot or breast or ovarian disease, before any stimulation is started.
When the response is poor or the cycle is cancelled
Some women produce fewer follicles than expected, and in a few cycles the doctor advises stopping before egg collection, either because too few follicles are growing or because the response is so strong that OHSS becomes a concern. A cancelled cycle is not a failed treatment: the next protocol is usually changed using what the scans and hormone levels showed. Ask the clinic in advance what a cancelled cycle costs, whether unused drugs can be returned, and whether the monitoring already done is charged again. If a cycle yields only a few eggs, some clinics offer to freeze embryos and repeat stimulation to collect more before transfer, which can be done on the same trip or a later one.
Planning IVF treatment in Turkey: how long to stay
You do not have to be abroad for the whole stimulation. Many couples start the injections at home, have the first monitoring scans at their own clinic with the results sent to the Turkish team, and arrive for the last 3–5 days before egg collection. Others stay about two weeks. For a fresh transfer allow around 12–14 days in total; with a freeze-all cycle, the transfer is a second, shorter trip. Our coordinators set a calendar once your first scan and hormone results are in. Read how it works for the steps.
Carry the drugs in your hand luggage in the original packaging with a doctor's letter, and use a cool bag if the label says to refrigerate them. Check the clinic's rules for flying home after egg collection; most women can travel the next day, but bloating can make the flight uncomfortable.
Is IVF in Turkey right for you? Choosing a clinic
Ask for the clinic's own results by age group, per embryo transfer, not a single headline figure; success depends mostly on the woman's age and the cause of infertility, and the UK regulator, the HFEA, publishes comparable figures for UK clinics. Ask who monitors the stimulation, how many embryologists work in the laboratory, and what the cancellation and OHSS policy is. You can compare hospitals on our hospital list, and testing is covered in fertility diagnostics.
Hospitals with IVF & Fertility in Turkey
Frequently asked questions
Most stimulation cycles use daily injections for 8–14 days, plus the trigger injection 34–36 hours before egg collection. In an antagonist cycle, a second drug is added for the last few days.
Gonadotrophins (FSH, sometimes with LH) grow the follicles, a GnRH antagonist or agonist stops early ovulation, and an hCG or GnRH-agonist trigger matures the eggs. Progesterone is given after egg collection to support the womb lining.
The pen needles are thin and most people describe a small sting and some bruising. Rotating the site and injecting at the same time each day helps. The bloating and tenderness later in the cycle are usually more uncomfortable than the injections themselves.
Stimulation and egg collection are routine procedures with known risks, mainly OHSS, bleeding and infection after collection. Safety depends on the protocol, on monitoring by scan and blood test and on the clinic's OHSS policy, so ask about all three before you pay.
Stimulation starts from [[price:pharmacological-stimulation-for-ivf|1101]] at our partner hospital. A whole private IVF cycle in the UK usually costs about £5,000–£8,000 plus drugs; confirm the contents of any Turkish package in a written quote.
Often yes. Start at home, have the first scans at your own clinic with the results sent to Turkey, and travel for the last 3–5 days before egg collection. The Turkish team decides the plan after seeing your tests.
Ovarian hyperstimulation syndrome is an over-response of the ovaries that causes fluid build-up. According to the RCOG, mild forms are common and severe forms needing hospital care are uncommon. Lower doses and a freeze-all cycle reduce the risk.
No. Turkish regulation allows IVF for married couples with their own eggs and sperm, and donor gametes are not permitted.
Most women travel the next day if they feel well. Bloating, cramping and tiredness are common for a few days; call the clinic if you have severe pain, vomiting or breathlessness.