Normally, the egg released by the ovary is ‘caught’ by one of the fimbriae and transported along the fallopian tube to the uterus. When the egg is fertilised and cultured outside the body, this is called in Vitro Fertilization (IVF). Fertilisation usually occurs in the tubes, and then the developing embryo implants in the uterus about one week after ovulation.


The most common reasons for IVF are:

  • Blocked tubes
  • If the sperm count is too low to fertilise the egg in vivo or if the quality is poor
  • When there's no sperm in the ejaculate, in which case a tissue sample is taken from the testes and sperm from the sample if found, is used for microinjection into the egg.
  • Immunological problems
  • Unexplained factors causing difficulty to conceive even after Artificial Insemination or ovarian stimulation.
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