Can a CT Scan Affect Sperm?

Sperm cells are important for fertilization and their quality may be influenced by several factors such as hot tubs or bike riding. You may wonder if a CT scan can affect sperm cells in any way. The response will depend on the dose of the radiation, but most CT scans will not harm sperm cells and will only be dangerous if repeated several times in a short amount of time.

CT Scans Effect on Sperm

A CT scan is x-ray computed tomography and is an analysis that can be performed in various areas of the body such as the head or the abdominal cavity. The test is performed to obtain an image of the interior of the body. Several 2D images will be taken to make up a 3D image. The radiation can be potentially damaging for the quality of the sperm. However, only radiation that is above the threshold of 5 Gy pose real risk to the sperm cells. The CT scan radiations deliver doses ranging from 0.03 to 0.05 Gy in the area where the CT scan is performed. Also, if the CT scan is not performed in the pelvic region, the amount of radiation that gets to the reproductive system is very low, sometimes under 0.001 Gy.

Consequently, a single CT scan test will not affect the quality of sperm in any way. If repeated tests are performed, these should be scheduled after the most fertile time of the partner to avoid any potential damage to the sperm.

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