Keloid Scarring After Liposuction?

Keloid scarring is more prone in earlobes, chest and upper outer arms. However, as you have a tendency towards Keloids, you do have a greater chance of having a liposuction insertion scar develop a hypertrophic scar, or a keloid. This may only develop two months after surgery and surgical revision may not make it better, it even could make it worse. Cortisone injections, repeated every several weeks, may be necessary to thin the scars and this can cause lightening of color and a depression in the contour underneath the scar. If a keloid forms, it may not respond to any treatment and may persist indefinitely. This is a risk that you need to discuss thoroughly with your physician.

Keloid scars can occur after any type of skin injury.  I would heed your personal history of keloids and treat the scars aggressively after your liposuction.  Liposuction is still a viable option for you. 

The scars from liposuciton are very small and put in areas that are usually hidden. It is not a real indication. You may have keloid on your ears but different areas of your body may heal just fine.
Your doctor will keep an eye on these areas and can inject the scars if there is any indication of the scars becoming thick.
Good luck.