Season 6 Episode 19

Title: Sympathy for the Parents
Air Date: April 1, 2010 at 12:00 AM PDT

When Alex's younger brother, Aaron, shows up at Seattle Grace-Mercy West with a hernia, it's up to Alex to get Bailey's approval for his pro bono surgery. After Aaron reveals that his family has not heard from Alex since he arrived in Seattle, secrets from Alex's past surface. Outside the hospital, Meredith and Derek discuss children, and Mark and Teddy do the nasty.