A TECHNIQUE A WRITER USES TO PRODUCE A SPECIAL EFFECT IN THEIR WRITING
They thought if they let enough blood out, it would get rid of whatever sickness the patient had or the "bad blood". Unfortunately, this was a not safe way to cure someone and bloodletting usually made the problem worse. Some patients even died from blood loss.<span />
Answer:
There was no need for misunderstanding because whatever that person said maybe was meant to be easily understood, hence the "needless misunderstanding" part of it.
Explanation: