To diagnose something more often than it actually occurs(verb)
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Use "overdiagnose" in a sentence
"The report's royal "we" returns again and again to such questions, claiming that "we overdiagnose, overtreat and overpromise.""
"I also think that our schools and medical profession tend to overdiagnose certain things like ADD or Autism and it goes in cycles."
"The results of most of them show a tendency for mental health professionals to overdiagnose women's depression and underdiagnose the disorder in men."