Infertility was the condition to be unable to reproduce.
Due to radiation sickness, the last five remaining Scalosians suffered from infertility. (TOS: "Wink of an Eye")
By 2364, the Aldean population was infertile caused by radiation poisoning from the sun's ultraviolet radiation. (TNG: "When The Bough Breaks")
The Son'a suffered from a species-wide infertility and became nomadic following their leave of the Ba'ku planet. (Star Trek: Insurrection)
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