Doctors are joining unions in a bid to improve working conditions and raise wages in a stressful health care system

The share of doctors who belong to unions is rising quickly at a time when organized labor is losing ground with other professions. The Conversation U.S. asked Patrick Aguilar, a Washington University in St. Louis pulmonologist and management professor, to explain why the number of physicians joining unions is growing – a trend that appears likely to continue.

How long have there been health care unions?

U.S. nurses first joined labor unions in 1896. Today, about 1 in 5 registered…