If the hematoma is clinically significant and can be drained, it is usually prudent to do so. Without the benefit of an exam, I would not be able to advise any more clearly than that. Your doctor may have felt that this was a diffuse bruise that could not be effectively...
Any procedure can cause this risk, but it seems to be more likely in ultrasonic lipo and laser lipo that use an energy source, compared to standard lipo methods.
Thank you for your question about your liposuction scars.
Stop using antiseptic soap. It harms open tissue.
Stop using neosporin. The ointment gets into the wound and stops healing
Wait 1 week. Are incisions open and draining at that point?
Or are they closed up but...