Medicine and Healthcare. Black stools can be due to iron supplements or excess iron in the diet. The most serious cause of black stools is bleeding in the GI tract, due to ulcers or some other cause. If the stool is black due to blood, it usually has a tarry feel. If there is just a black color, most likely it is not blood.
Yes, but most doctors will not do it that early. Yes, a vasectomy can be performed on an 18 year old, depending on the circumstances. Yes, a vasectomy can be performed on an 18 year old, depending on the circumstances. 1 year ago by Stephen F. Shaban, MD.
It is noted, however, that most men are sterile after 3-4 months even with no ejaculation. Is vasectomy better or worse than a woman having her tubes tied? While they both have a failure rate of 1/2,000, there is less pain and risk involved in vasectomy.