Hader was placed on the paternity list Wednesday.
Hader has made only three appearances in June -- including his first blown save and loss of the season -- with the Brewers in free fall, and he'll now step away from the team for a few days to be with his family. Assuming there's no complications, the left-hander should be back by Saturday's contest in Cincinnati. Devin Williams is the likely candidate to receive any save opportunities in the meantime.