IVF and ICSI treatment are assisted reproduction methods in which eggs are fertilised in the laboratory and the resulting embryos are transferred to the uterus. Their goal is to help couples with fertility problems achieve a pregnancy. In IVF, eggs and sperm are placed together so fertilisation occurs naturally in the dish; in ICSI, a single sperm is injected directly into each mature egg, which is often chosen for male-factor infertility.
The cycle begins with hormone injections to stimulate the ovaries, monitored by ultrasound and blood tests. Eggs are then collected through the vagina under ultrasound guidance, usually with sedation, and fertilised by IVF or ICSI. The embryos are cultured for several days, and one or more are transferred through the cervix with a thin catheter, without anaesthesia in most cases.
Stimulation takes around ten to fourteen days, egg collection about fifteen to thirty minutes, and most women resume light activity the next day. A pregnancy blood test is done about two weeks after transfer, so the outcome is confirmed by that test and a later ultrasound. Success depends on age and individual factors and cannot be guaranteed.
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They offer a route to pregnancy when conception has not occurred naturally, for example with blocked tubes, low sperm count or unexplained infertility. ICSI is particularly useful when sperm numbers or movement are limited.
Couples with tubal problems, male-factor infertility, ovulation disorders, endometriosis or unexplained infertility after assessment. The fertility specialist reviews hormone tests, ultrasound and semen analysis before recommending IVF, ICSI or neither.
Both partners usually have blood tests and infection screening, with a semen analysis for the man and an ultrasound or other uterine assessment for the woman. Folic acid, a healthy weight, no smoking and limiting alcohol are usually advised.
Ovarian stimulation is followed by egg collection under sedation, then fertilisation in the laboratory by either method. Selected embryos are transferred to the uterus a few days later, or frozen for a later transfer.
After egg collection mild cramping, bloating or light spotting is common for a day or two. Embryo transfer needs no real recovery, and you can usually resume normal light activity, avoiding strenuous exercise as advised.
A pregnancy test is usually done about two weeks after embryo transfer, and an ultrasound follows a few weeks later to confirm. If a pregnancy is not achieved, further cycles or frozen embryos may be considered.
Possible risks include ovarian hyperstimulation, bloating, mood changes from hormones, rarely bleeding or infection after egg collection, and a higher chance of twins when more than one embryo is transferred. Your team adjusts medication and the number of embryos to reduce these risks.
In IVF the sperm fertilises the egg on its own in the dish, while in ICSI one sperm is injected into the egg by an embryologist. The choice depends on the sperm quality and previous fertilisation results.
A typical cycle needs monitoring for around ten to fourteen days, followed by egg collection and later a transfer. Many patients avoid flying for a few days after transfer, and your treating doctor confirms the safe schedule.
Yes, egg quantity and quality decline with age, which affects the chance of pregnancy. Your fertility specialist will discuss the options that suit your situation.
