Unilateral Renal Agenesis
This is much more common, but is not usually of any major health consequence, as long as the other kidney is healthy. It is associated with an increased incidence of mullerian duct abnormalities which are abnormalities of the development of the female reproductive tract and can be a cause of infertility. The odds of a person being born with this condition are roughly 1 in 750. Adults with unilateral renal agenesis have considerably higher chances of hypertension (high blood pressure). People with this condition are advised to approach contact sports with caution.
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