IVF (one cycle)

IVF stands for in vitro fertilisation. "In vitro" is Latin for "in glass" — it simply means the egg and sperm are joined together outside the body, in a laboratory dish, rather than inside the fallopian tube as happens in natural conception. Once an egg is fertilised and grows into an early embryo (a tiny ball of dividing cells), that embryo is gently placed into the womb (uterus) in the hope it will implant and lead to a pregnancy.

IVF is the most widely used form of assisted reproductive technology — a group of treatments that help people have a baby when natural conception is difficult or not possible. It has been used since the late 1970s, and millions of babies have been born this way.

It helps to think of IVF as one full cycle made up of several stages: gentle hormone medicines to grow several eggs, a short procedure to collect those eggs, fertilisation in the lab, a few days of growing the embryos, and finally placing an embryo into the womb. A full cycle usually takes around three to six weeks from the first medicine to the pregnancy test.

People turn to IVF for many reasons. Doctors often suggest it when other approaches have not worked or are unlikely to. Common reasons include:

• Blocked or damaged fallopian tubes — the tubes that carry the egg to the womb. IVF bypasses them entirely.
• Ovulation problems, such as polycystic ovary syndrome (PCOS), where eggs are not released regularly.
• Endometriosis — when tissue similar to the womb lining grows in other places and affects fertility.
• Male factor infertility — a low sperm count, poor movement, or abnormal shape of sperm.
• Unexplained infertility — when no clear cause is found after testing.
• Genetic conditions a couple may want to avoid passing on, where embryos can be tested before transfer.
• Fertility preservation — for example, freezing eggs or embryos before cancer treatment.

IVF is not right for everyone. It may be less suitable, or success may be much lower, with significantly reduced ovarian reserve (very few remaining eggs), certain womb abnormalities that have not been treated, or some serious medical conditions where pregnancy itself would be risky. Age matters a great deal: a woman's own egg quality declines over time, which is why success rates fall as age rises. A reputable clinic will be honest with you about realistic chances rather than promising a result. There are no guarantees with IVF, and a single cycle does not always lead to a baby.

"IVF" is really a family of related techniques. The right combination depends on your diagnosis.

• Conventional IVF. Eggs and prepared sperm are placed together in a dish and left to fertilise on their own.
• ICSI (intracytoplasmic sperm injection). A single sperm is injected directly into a single egg using a fine needle. This is often used when sperm quality is low or when conventional IVF has not fertilised eggs well. The Turkish IVF programmes most international patients use are very often IVF with ICSI.
• Frozen embryo transfer (FET). Good-quality embryos that are not transferred straight away can be frozen and used in a later cycle. Many clinics now "freeze all" and transfer in a separate, calmer cycle.
• Preimplantation genetic testing (PGT). A few cells from an embryo are tested for chromosome problems or a specific inherited condition before transfer. This is an add-on, not part of every cycle.
• Donor gametes and surrogacy. In some countries IVF can use donor eggs, donor sperm or a surrogate. Note that this is not legal in Turkey — Turkish law permits IVF only for married couples using their own eggs and sperm. If you need a donor, Turkey is not the right destination.

Add-ons such as assisted hatching, embryo glue or time-lapse imaging are sometimes offered. Evidence for many add-ons is limited, so ask your clinic what each one is for and whether it is likely to help in your specific case.

Here is what a typical "long" or "short" cycle looks like in practice. Your clinic may adjust the order and medicines to suit you.

1. Suppressing the natural cycle (about 2 to 3 weeks, if used). A daily injection or nasal spray temporarily switches off your normal hormone signals so the team can control timing. Some protocols skip this step.
2. Ovarian stimulation (around 8 to 14 days). Daily hormone injections encourage your ovaries to ripen several eggs at once, instead of the single egg of a natural month. You attend the clinic for ultrasound scans and blood tests so the dose can be fine-tuned.
3. The "trigger" shot. When the eggs look mature, a final injection prepares them for collection. Egg retrieval is usually scheduled for about 36 hours later.
4. Egg retrieval (about 20 minutes). Using ultrasound to guide a thin needle through the vaginal wall, the doctor draws fluid and eggs from the ovarian follicles. This is done under light sedation or a short general anaesthetic, so you are comfortable and usually unaware of it. It is a day-clinic procedure, with no overnight stay.
5. Sperm collection and fertilisation. On the same day, a fresh sperm sample is provided (or previously frozen sperm is thawed). In the lab, eggs and sperm are combined — by conventional IVF or by ICSI. On average, roughly 70% of mature eggs fertilise, though this varies.
6. Embryo culture (about 3 to 5 days). Fertilised eggs grow in a special incubator. Many are grown to the blastocyst stage (around day 5). Not all embryos make it this far — on average around half of fertilised eggs reach blastocyst — which is normal.
7. Embryo transfer (under 10 minutes). A thin, soft tube passes one embryo (sometimes two, after discussion) through the cervix into the womb. This is usually painless and needs no anaesthetic. After this you take progesterone (as a pessary, gel or injection) to support the womb lining.

About 16 days after retrieval you take a pregnancy test. If it is positive, a scan around six to seven weeks confirms things.

IVF is physically demanding mainly because of the medicines and the emotional ups and downs, rather than because of major surgery.

• During stimulation: you may feel bloated, tender in the lower tummy, tired or moody. Headaches, hot flushes and bruising at injection sites are common and usually mild.
• The day of egg retrieval: plan to rest. Because of sedation, you must not drive, sign important documents, or travel alone that day — arrange someone to accompany you. Mild cramping and light spotting are normal.
• The first 1 to 2 days after retrieval: take it easy with gentle, light activity. Most people return to normal routines within a few days. Drink plenty of fluids and watch for warning signs (see the risks section).
• After embryo transfer: there is no need for strict bed rest — normal gentle activity is fine. Avoid heavy lifting, intense exercise and very hot baths or saunas. The two-week wait until the pregnancy test is often the hardest part emotionally; be kind to yourself and lean on support.

Contact your clinic promptly if you develop severe tummy pain, rapid swelling of the abdomen, breathlessness, a noticeable jump in weight, much less urine than usual, or heavy bleeding.

IVF is generally safe, but no medical treatment is risk-free. Knowing the main risks helps you spot problems early.

• Ovarian hyperstimulation syndrome (OHSS). This is when the ovaries over-respond to the hormone medicines, becoming swollen and leaking fluid. Mild OHSS (bloating, discomfort) is fairly common and settles by itself. Severe OHSS is uncommon but serious, causing marked swelling, rapid weight gain, vomiting, breathlessness and very reduced urine; it needs urgent medical care. Modern protocols are designed to reduce this risk.
• Multiple pregnancy. Transferring more than one embryo raises the chance of twins or triplets, which carries higher risks for both mother and babies (premature birth, low birth weight). This is why single embryo transfer is now standard in many programmes.
• Ectopic pregnancy. The embryo implants outside the womb, usually in a tube. This is not viable and needs prompt treatment.
• Egg-retrieval complications. Rarely, the needle can cause bleeding, infection, or damage to nearby structures.
• Miscarriage. The risk is broadly similar to natural conception and rises with age.
• Emotional strain. The hope, waiting and possibility of an unsuccessful cycle can be very stressful. Good clinics offer counselling.

Research into longer-term questions, such as any link with certain cancers, has been broadly reassuring, but discuss your personal history with your doctor.

The honest answer to "will it work?" is: it depends, mostly on age and the cause of infertility. A single cycle does not always succeed, and many people need more than one.

To give a sense of scale, UK regulator figures (HFEA) for fresh embryo transfers show roughly these birth rates per embryo transferred by age band: around 33% for those under 35, about 25% at 35 to 37, around 17% at 38 to 39, about 10% at 40 to 42, and around 4% from 43 onwards. Frozen embryo transfers in the same data averaged about 27% per embryo. These are population averages, not a prediction for you, and clinics report their numbers in different ways — so always ask how a clinic calculates its success rates.

"How long do results last" works differently here than with most procedures: IVF aims for a pregnancy and, ultimately, a baby. There is no result to maintain. Once you have a healthy ongoing pregnancy, care continues as a normal pregnancy. Any embryos you freeze can typically be stored for years for future siblings, subject to the clinic's rules and local law.

In Turkey, one IVF cycle is often quoted from roughly 2,500 to 5,500 EUR as a package, which usually covers consultations, monitoring scans, egg retrieval, lab work (often including ICSI) and embryo transfer. These are indicative ranges only — they vary by case, by clinic and by the specialist, and are not a quote. Always get a written, itemised breakdown before you commit.

Things that move the price up or down include:

• Medications. Stimulation drugs are frequently billed separately and can add a few hundred to a couple of thousand euros, depending on the doses you need.
• ICSI versus conventional IVF.
• Add-ons such as preimplantation genetic testing (PGT), assisted hatching or time-lapse imaging.
• Freezing and storage of spare embryos, and any future frozen embryo transfer.
• Extra investigations if tests reveal something that needs treating first.
• Number of cycles. Some clinics offer multi-cycle packages; budget for the real possibility of needing more than one attempt.

For an international patient, remember to add flights, accommodation for around two to three weeks (or split into two trips), and translation or coordination fees. A clear, all-in estimate is a sign of a trustworthy clinic.

Turkiye has become a major destination for IVF because it combines experienced clinics, modern laboratories and prices that are often lower than in many Western European countries, frequently within a single coordinated package. Istanbul in particular has many large hospital groups with dedicated fertility units.

Before you choose, verify the basics yourself rather than relying on marketing:

• Hospital accreditation. Look for international accreditation such as JCI (Joint Commission International), and ask about laboratory standards (for example ISO 15189 for medical labs).
• The specialist's credentials. Confirm the doctor is a qualified, registered reproductive medicine specialist and ask how many cycles they perform.
• Transparent success rates. Ask for results broken down by age and by your type of problem, and how they are calculated. Be wary of headline figures that sound too good.
• Honest, written quotes. A clear itemised cost, including medicines and possible add-ons, with no pressure to decide on the spot.
• The legal framework. Turkey allows IVF only for married couples using their own eggs and sperm; donor eggs, donor sperm, donor embryos and surrogacy are not permitted. Make sure the treatment you need is actually legal there.
• Communication and aftercare. Check that you will have an English-speaking (or your-language) coordinator and a clear plan for follow-up once you fly home.

Good preparation improves both your experience and, in some ways, your chances. In the weeks before a cycle:

• Optimise your health. Stop smoking, keep alcohol low or none, aim for a healthy weight, and follow any folic acid or supplement advice. These steps support egg and sperm quality and pregnancy.
• Complete the tests. Expect hormone blood tests, an ultrasound to check ovarian reserve, a semen analysis for the partner, and infectious-disease screening.
• Plan the logistics. Work out time off, travel dates, and who can accompany you for egg-retrieval day.

Bring a written list of questions. Useful ones include:

• What is causing our infertility, and why is IVF the right step for us?
• Which protocol and medicines will you use, and why?
• Will you recommend conventional IVF or ICSI for us?
• What are realistic success rates for someone of my age and diagnosis?
• How many embryos will you recommend transferring, and what is your view on single embryo transfer?
• What does the all-in cost include, and what could be extra?
• How do you reduce the risk of OHSS, and what should I watch for?
• What happens to spare embryos, and what are the storage rules?
• How will follow-up work once I return home?

After a cycle, your main jobs are to keep taking the medicines exactly as prescribed (especially progesterone), avoid heavy exertion, and stay alert to warning signs of OHSS or other problems. Your clinic should give you written instructions, emergency contacts, and a plan for the pregnancy test and any follow-up scan.

If you are travelling for treatment, timing your flights matters:

• After egg retrieval, many clinics suggest waiting a few days before flying — and longer (often around a week or more) if there is any sign of OHSS, because symptoms can peak roughly 5 to 9 days after retrieval. Sitting for long periods also raises the small risk of blood clots, so move around and stay hydrated.
• After embryo transfer, current evidence does not show that flying harms implantation or success. Even so, very long journeys immediately afterwards can be uncomfortable and stressful, so plan sensibly.
• Always check with your own specialist before booking, as the right advice depends on how your body responded.

Many international patients split the process into two trips — one for testing and the start of stimulation, and one for retrieval and transfer — or stay for roughly two to three weeks to complete a cycle in one visit. Carry your medicines, prescriptions and a treatment summary in your hand luggage, and keep injectable drugs cool as instructed. Once home, share your clinic's notes with your local doctor so your care is joined up.