Yang visited an emergency room earlier this morning after experiencing abdominal pain and was diagnosed with an apparent kidney stone, his campaign said in a statement.
His public events for Friday were canceled, “but he looks forward to getting back out on the trail in the days ahead,” the campaign said.
On Twitter, Yang thanked the team at Mount Sinai West for the “excellent care” and his wife Evelyn “for keeping me company as I experienced my first (and hopefully last) kidney stone.”
The primary elections in the New York City mayoral race will be held June 22.
This story has been updated with Yang’s release from the hospital.