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.
Chances of a successful vasectomy reversal decline over time. Reversals are more successful during the first 10 years after vasectomy. In general, vasectomy reversal: Leads to overall pregnancy rates of greater than 50%. Has the greatest chance of success within 3 years of the vasectomy. Leads to pregnancy only about 30% of the time if the reversal is done 10 years after vasectomy.