Snippet from the non-hair-loss article:
If you are a lady, and you think you might be pregnant, you can take an at-home test to find out. You simply pee on a stick. Whether the results are measured in pink lines, blue lines, plus and minus symbols, or a “pregnant”/”not pregnant” digital readout, all the home pregnancy tests on the market are really looking for the same thing â€” Human chorionic gonadotropin (HCG).
HCG is a pregnancy hormone. It’s produced by the placenta, a temporary organ that only forms in female bodies when an embryo has attached to the uterine lining. And so it was kind of weird when a male friend of a Reddit user known as CappnPoopDeck peed on a home pregnancy test and it came back positive.
Read the rest at BoingBoing — Positive pregnancy test diagnoses man’s cancer