While I do not use drains for breast augmentation surgery, it is not wrong for a surgeon to use them. Typically, there should be very little pain associated with drain removal. There may be a tugging sensation and some discomfort if there is a stitch that needs to be removed or cut during the process.
It is very unusual to use drains after the usual breast augmentation, unless something else was done at the same time With the TUBA procedure drains are almost never used because there is usually minimal or no bleed during the surgery However removal of the modern silicone drains is usually not even felt by the patient..