Definition - What does Subfertility mean?

Subfertility refers to an individual or couple who is not infertile, but also not optimally primed to conceive. Subfertility, as opposed to infertility, means there is still a chance of conceiving without medical intervention, however that chance is statistically lower than average.

Couples or individuals who are diagnosed with subfertility may eventually become pregnant on their own, while others may become pregnant through various levels of intervention.

FertilitySmarts explains Subfertility

Subfertility is most common in instances where there is no irreparable or untreatable abnormality present. Age, weight, and lifestyle choices such as stress, smoking, and alcohol intake are predictive factors of subfertility.

Additionally, certain biological abnormalities, including ovulation disorders, fallopian tube damage, sperm dysfunction, or illnesses such as endometriosis or fibroid growth can cause subfertility.

In order to diagnose the existence and cause of subfertility, the individuals must undergo a standard fertility workup.

Men with a sperm count less than 20 million sperm per mL are categorized as subfertile, where a sperm count less than 5 million sperm per mL are considered infertile.

The results of the fertility evaluation will provide insight and direct protocol for treatment. The vast majority of individuals diagnosed with subfertility will eventually conceive a healthy pregnancy.

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