Hi...Yes, theoretically hypothyroidism can affect sperm count in men. Hypothyroidism can also cause a decrease in follicle-stimulating hormone (
FSH) and luteinizing hormone (
LH), which can also lead to low sperm count. Other effects of hypothyroidism on sperm include: Reduced testicular function, Erectile dysfunction, Decreased libido, Reduced sperm morphology, and Reduced sperm motility.
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