Birth.
In Hell, this is an extremely easy and common occurrence, as demons naturally possess strong bodies, especially after gaining a system, they can further grow.
Gestation and childbirth are as simple as breathing.
Even if the fetus in the abdomen experiences umbilical cord around the neck, one can easily handle it by reaching in.
Thus, Hell Hospital doesn't have a maternity ward and there's basically no medical position related to childbirth.
However,
Today's Repair Center welcomed a special birthing case, and the subject turned out to be male. Not only that, this male is a patient within the hospital, a patient injured by an ancestor and undergoing treatment in the intensive care unit.
Recovering a month ahead of schedule, his body even sprouted a young fetus.
Since there's no maternity ward, the patient was transferred to the neurosurgery room, operated on by a renowned surgeon personally.