This seems doable knees:

When a woman has a long, obstructed labor with no doctors to help her deliver, the blood supply to her vagina, bladder, and rectum can be cut off. The tissues die, and a hole is ripped in her flesh. From that hole, shit and piss will leak for the rest of her life in one long incontinent streak. Because she stinks, she is rejected by her husband and her community, and forced to live scavenging on the streets.

In every African town, you see fistula-stricken women, wandering aimlessly, their heads down in shame. They are the saddest people I have ever met. But this problem is cruelly easy to treat. For $300, a fistula can be repaired in 90 percent of cases. Fistula can be beaten, if only we value women enough to do it. There used to be a fistula hospital in Manhattan. Today, it is the Waldorf-Astoria.

$300!