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Test tube babies, as they are commonly known, are created using IVF or In Vitro Fertilization which literally means fertilization in glass. Essentially, a woman?s eggs are removed from her ovaries and sperm from her partner or donor is used to fertilize them before being inserted into her womb. When other fertilization techniques have failed, the mother may be older or there is no apparent reason for infertility, then In Vitro Fertilization is frequently recommended.

Methods of IVF will invariably differ a little from clinic to clinic but should proceed along these lines. At first your physician will halt the release of hormones that are produced during your monthly cycle by giving you some drugs. Blocking the hormones helps the doctor have greater control over your egg production. You then take different drugs to make your ovaries produce more than one egg.

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Blood Tests and vaginal ultrasound scans are used to monitor the estrogen level produced by the eggs. Once the time is right, another hormone will be injected to help the eggs mature. Timing is crucial, as you must have this injection 34-38 hours before your eggs are collected - this may mean you having it last thing at night. Eggs are usually collected by ultrasound guidance which takes around 30 minutes and you are either given a drug to make you drowsy or a general anesthetic.

Around the time the woman?s eggs are collected, the male produces a fresh sample of sperm. To make sure that the best sperm are used for the process, the sample is washed and then spun at high speed, this will give the healthiest and the most active sperm. With donated sperm, the process is the same but the sample is taken from the freezer. After the eggs and sperm have been collected they are left to mix in a laboratory dish for between 16 and 20 hours and then inspected to see whether fertilization has taken place. Only those embryos that have fertilized successfully are kept and left for a further day to two days before a final inspection.

Once your eggs have been collected there is a waiting period of two days, then you are given pessaries, an injection or gel to ready the lining of your womb.

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