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Further tests

If you have an irregular cycle or infrequent periods, you will be offered additional tests on the hormones controlling egg production and release to look for an underlying disturbance in the key hormones. If you have symptoms that might be indicative of a thyroid problem, then your thyroid gland function will also be checked.

a sperm problem, the test should be repeated. As it takes around 70 days for sperm to mature, it is usual to allow two to three months between samples so that any temporary upset in sperm production will be rectified. If there is a more extreme problem, such as no sperm in the ejaculate, then the test is repeated as soon as possible.