subfertility vs infertility

The terms subfertility and infertility are often used interchangeably, but they aren't the same. Subfertility is a delay in conceiving. Infertility is the inability to conceive naturally after one year of trying. In subfertility, the possibility of conceiving naturally exists, but takes longer than average. 

• infertility
• subfertility (subfertiliteit, vruchtbaarheidstoestand beneden normaal)

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