Mark Ruffalo Waited Weeks to Tell His Wife About Brain Tumor Diagnosis

Actor Mark Ruffalo (R) and Sunrise Coigney attend The 22nd Annual Screen Actors Guild Awards at The Shrine Auditorium on January 30, 2016 in Los Angeles, California.

Mark Ruffalo kept his brain tumor diagnosis from his wife Sunrise Coigney for several weeks, but he had a very understandable reason for it.

The Poor Things actor was 33 when he found out that he a large "mass" behind his left ear, and at the time, his wife—whom he married in 2000—was just days away from giving birth to their first child, son Keen, now 22.