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.
Those studies have since been invalidated, and todayâs science confirms that there is no link. After a vasectomy, how long until sterile can be two to six months, depending on the individual. Once the procedure is complete, your specialist will ask you to return in a couple of months.He or she will test your semen to be sure no sperm are present.hose studies have since been invalidated, and todayâs science confirms that there is no link. After a vasectomy, how long until sterile can be two to six months, depending on the individual. Once the procedure is complete, your specialist will ask you to return in a couple of months.