• Factors Affecting Fertility
  • Causes of Subfertility—Male and Female Subfertility
  • Male Subfertility
  • Female Subfertility
  • Assisted Reproductive Techniques

One in six couples experience an unknown delay in conception. Roughly 50% of these couples will conceive either spontaneously or with relatively simple advice and treatment. The other half remain subfertile and need more complex treatment modules such as in vitro fertilization and other assisted conception techniques.

Most couples presenting with fertility problem do not have absolute infertility (i.e. no chance of conception), but rather relative subfertility with reduced chance of conception because of one or more factors in either or both partners. Most ...

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