Can Liposuction Cause Internal Keloids?

Keloids only form on the skin/epidermis.  So you are safe from that standpoint.  However, you may have a tendency to form keloid scars from the liposuction sites of entry.
Hope that helps.

This is not possible since the skin is on the outside and this is where keloids form. So don't worry about this and good luck with your surgery. 

Keloids only form on the skin surface and do not occur under the skin in the subcutaneous areas of the fat where liposuction occur. You can get some fibrous tissue formation subcutaneously but not keloids. 

True keloids are limited to the dermis, the deeper layer of the skin. Keloids tend to not develop in the subcutaneous tissues. Liposuction is performed in the deeper subcutaneous tissues. Therefore, it is unlikely that you could develop "internal keloids" from liposuction. However, you can develop external keloids.

Dear Dlite
Many people think they form keloids and in fact they don't. Keloids are exuberant scars that spill outside of the area where the skin was injured. A much more common situation is a hypertrophic scar. This is a thick, unattractive, ropy scar but it stays in the track of the injured skin. I think a large concern for me treating someone with darker skin with liposuction is a phenomenon know as post inflammatory hyperpigmenation. Even the needle marks used to inject the local anesthestic can stimulate hypergimenation. Some of this may fade in time, but some may remain and this an be frustrating.

I am not aware that scarring has occurred in the subcutaneous tissues where the liposuction cannula traverses. Certainly, the skin's insertion sites can develop a hypertrophic scar or keloid as this is trauma through the dermis. There is some friction during the liposuction movement of the cannula in the skin, not the fatty layer. The possibilities of developing significant keloids in the insertion sites of the skin might one change their mind about having liposuction.