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Male Infertility Linked to Higher Cancer Risks, Study Finds

4/22/2026

Summary

Story summary

Lund University researchers report a link between male infertility and cancer risk, especially colorectal and thyroid cancers.
Men needing assisted reproduction technology face nearly double colorectal cancer risk and triple thyroid cancer risk versus natural conception.
By 2050, about 19 million men are projected to be diagnosed with cancer.
Researchers say genetic factors may underlie infertility and cancer risk and urge viewing male fertility as a health indicator for men aged 30–35.

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Story summary

Lund University researchers report a link between male infertility and cancer risk, especially colorectal and thyroid cancers.
Men needing assisted reproduction technology face nearly double colorectal cancer risk and triple thyroid cancer risk versus natural conception.
By 2050, about 19 million men are projected to be diagnosed with cancer.
Researchers say genetic factors may underlie infertility and cancer risk and urge viewing male fertility as a health indicator for men aged 30–35.