HOLY SHIT SIGNAL BOOST
According to the American Cancer Society, pregnancy tests work by detecting a hormone called Beta-HCG (human chorionic gonadotropin). Beta-HCG is produced by the cells of a woman’s placenta during pregnancy, but is also excreted by some tumors “including some, but not all, testicular cancers,” the cancer society says.
"At the time of diagnosis, only a small minority of men with testicular cancer have HCG levels high enough to be detected by a home urine pregnancy test," says Dr. Ted Gansler, director of medical content for the American Cancer Society, in a statement. "More sensitive blood tests for HCG with a lower cutoff level could detect a somewhat higher percentage, but several non-cancerous conditions can cause false positive results.
"Current evidence does not indicate that screening the general population of men with a urine test for HCG (or with urine or blood tests for any other tumor marker) can find testicular cancer early enough to reduce testicular cancer death rates," Gansler says.