When The Straits Times contacted the radiographer, he wanted to be known only as Mr Lee, 25 and would only say he worked in a local hospital. He has since removed the posts from his account.
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According to the article on citizen journalism site, Stomp, the reader who sent in the screengrabs of the posts said the radiographer should not be making such remarks.
The contributor wrote: "Singapore Radiographer criticising his own patient on Facebook.
"As a radiographer you're also (expected) to be like a doctor.
"I don't see why are you complaining about your own patient because everyone will fall sick or have medical problems.
"So you as a doctor should help out and not make nasty comments on Facebook for the public to read."