In fact, H.R. 1122 allows partial birth abortion to save a mother's life. Even the leading authority on late-term abortion in the United States says that the procedure is never necessary to preserve a woman's health. This is a loophole large enough to justify any abortion. So, adding any health exception would effectivly negate the ban. It may be necessary to preserve a woman's future fertility.
Medical experts say it does the opposite.
Forecefully dilating a woman's cervix for three days and turning a baby in utero to a breech position can make it more difficult to carry a subsequent baby to term. The procedure is not as brutal as it looks. The anesthesia given to the mother kills the unborn baby. Leading anesthesiologists in the United States testified before Congress that this is simply not true. It is rarely done, and only for the most serious of reasons.