MLB: Harvey suffered blood clots in bladder
The Mets said Harvey had been dealing with an undisclosed medical issue, which the 27-year-old revealed on Tuesday was a scare regarding his urinary tract.
But the Mets' ace insisted he will be fine to face reigning champions the Kansas City Royals on Sunday.
"It started with a bladder infection, and it created a blood clot in the bladder," Harvey said.
"I passed it yesterday. It wasn't a great first day [after] my 27th birthday, but we cleared that. And then we had a little procedure done this morning just to go in and check the bladder and everything was clear."
Harvey added: "I didn't really know what was going on. I was having trouble using the restroom. Any time there's discoloration in your urine, it's not a great feeling.
"So I didn't know what was going on with my stomach. We had some tests yesterday and everything is fine now."