This story has been updated.
Detroit Mayor Dave Bing is still in the hospital after being admitted Thursday evening.
Mayoral spokeswoman Naomi Patton said in a release that doctors have diagnosed the mayor with "an inflammation of the intestine; a commonly diagnosed, non-life-threatening condition."
Bing saw a dentist early Thursday morning and checked into Henry Ford Hospital in the evening. A spokesperson for Bing said the mayor felt "discomfort" following his dentist visit.
The Free Press reports radio host Paul W. Smith said the mayor told him he might have colitis, a condition that involves swelling in the colon.
Bing, 68, found time Thursday night to retweet a handful of good wishes that came to him via Twitter. He could be released from the hospital as early as this afternoon.
"The mayor is alert, upbeat and tells me he's ready to return to the office," Patton said.
UPDATE: 4:10 p.m. -- Bing's Chief of Staff Kirk Lewis said Friday afternoon that Bing will stay at Henry Ford Hospital for another night for further observation.
"He continues to be upbeat and rests comfortably," he said.
Patton confirmed Bing is suffering from an inflamed intestine.