pull back vs draw back

pull back and draw back both are verbs.

Word	Noun	Adjective	Verb	Adverb
pull back	No	No	Yes	No
draw back	No	No	Yes	No

As verbs, pull back and draw back are synonyms defined as:

pull back and draw back: use a surgical instrument to hold open (the edges of a wound or an organ)

Other synonyms of pull back include retract.

As verbs, pull back and draw back are synonyms defined as:

Other synonyms of pull back include move back, pull away, recede, retire, retreat, withdraw.

pull back (verb)	draw back (verb)
make a retreat from an earlier commitment or activity	use a surgical instrument to hold open (the edges of a wound or an organ)
move to a rearward position; pull towards the back	pull back or move away or backward
stretch back a bowstring (on an archer's bow)
use a surgical instrument to hold open (the edges of a wound or an organ)
pull back or move away or backward