What Happens if All of the Fluid Doesn't Drain out After Liposuction?

I personally, and I expect the majority of plastic surgeons, close the access sites for liposuction. If no fluid is coming out of your drainage incisions, it may be that there is no longer any excess fluid. After liposuction, the excess fluid will either drain out or be resorbed.
I wouldn't let this worry you and I wouldn't pull open your incisions.
Hope that helps!

I do not leave my holes after liposuction open, and I believe most surgeons close the holes. The drainage is generally reabsorbed by your body, and I have never had to drain a patient after liposuction.
But it is possible to have a fluid pocket build up and require drainage. After the surgery it is important to wear the compression garment and keep your activity to a minimum.

An important part of the liposuction procedure is to inject fluid prior to actual liposuction to induce vasoconstriction of the blood vessels. This leads to decrease blood loss and also induce some post operative pain managment. At least 20% of the fluid injected is removed with the actual liposuction. The remainder of this fluid gets absorbed rather quickly by the lymphatic system and the third space between the cells.I found that leaving the liposuction holes open might help to get the swelling down quickly. However, it is such a discomfort for the patient in the first few days as they ooze from the different sites. Closure of these holes is better and the body should be able to deal with the fluid. Best of luck!