How We Found the Best Testosterone Booster. We started with a list of 214 testosterone boosters, found in their natural habitats on websites like Bodybuilders.com, BroScience, and The Art of Manliness. These supplements are marketed almost exclusively to men looking for that extra edge in the weight room, the bedroom, and the mirror.
1 These are common and often don't cause symptoms, but may lead to a small amount of blood in your stool.  sexually transmitted infections (STIs) â any sexual activity involving the anal area can spread STIs, which may sometimes lead to rectal bleeding.
1 Red stool could also mean that blood is coming from the lower area of the colon, a sign of inflammatory bowel disease (IBD). 2  Blood in your feces could also be caused by hemorrhoids, or tiny tears in your anal tissue. 3  If you notice blood in your poop, it's important to let your doctor know. 4  Green.