Home / Health / Greg Grunberg Loses Hair, Finds New Self
Greg Grunberg Loses Hair, Finds New Self
1 Dec, 2025
Summary
- Actor Greg Grunberg lost hair, eyebrows, and eyelashes overnight.
- He believes his alopecia was triggered by stress from knee surgery.
- Grunberg is embracing his new look and raising awareness for alopecia.

Actor Greg Grunberg has openly shared his experience with alopecia, a condition that caused him to lose his hair, eyebrows, and eyelashes almost overnight. He believes the autoimmune condition may have been dormant and was triggered by the stress of a recent knee replacement surgery and other life events.
Initially, Grunberg shaved his head before filming a movie with J.J. Abrams and later shared his diagnosis publicly to destigmatize the condition. He's adapting to the daily challenges, such as sweat irritating his eyes without eyebrows, but finds empowerment in embracing his new appearance and avoiding any attempts to conceal it.
Through his openness, Grunberg is raising awareness and connecting with many others affected by alopecia. He emphasizes the importance of self-acceptance and how the world's reaction mirrors one's own self-perception, encouraging honest conversations about health challenges.