How much would it cost to add a 200 sf room (20'x10') onto a house. A bare room, with the concrete foundation as the floor inside. If it were built with the cheapest (reasonably quality) materials possible, with no heating, plumbing etc. Just a concrete foundation, attached to the house, with walls...
Most of the time, blood in the semen is caused by swelling or infection of the prostate or seminal vesicles. The problem may occur after a prostate biopsy. Often, the cause of the problem cannot be found.
An ulcer, a sore of the stomach lining caused by a bacterial infection, can become aggravated and bleed. The overuse of certain NSAIDs (non-steroidal anti-inflammatory drugs) can also cause peptic ulcers, which can lead to bleeding again, and thus black stool.