Lumps and hard lines on stomach and sides 16 weeks after Liposuction. Any suggestions? (photos)

I am not as pessimistic as your other answers.  The lines probably are not cannula marks as others have suggested.  More likely induration and those are the lines of pull, given their location and direction.  Look into anti-inflammatory treatments and soft tissue treatments. I believe it can get a lot better. 

you need aggressive post procedural massage, radiofrequency and Z Wave.  If there is no improvement after 4-8 weeks of treatments, you should consider seeing a revision specialist.  Although this may resolve at 6-12 months.  Best, Dr. Emer.

I don't know this but I would guess you had laser or ultrasonically assisted liposuction. The thermal damage from these modalities can cause the long term fibrosis in contour irregularities shown in the picture.

At 16 weeks your results are permanent or close to permanence.Do not expect any significant change without further intervention.The results you show on the pictures appear to represent poorly performed or unevenly performed aggressive liposuction.I often see these type of results from inexperienced practitioners using VASER. Or ultrasound assisted liposuction.The streaks often represent the practitioners feeding the liposuction cannula back-and-forth in the same position.This is a big no-no in liposuction.One should never leave the cannula in the same area for any significant amount of time and each area should ideally be covered from multiple angles.Poor outcomes from liposuction can be difficult at times not possible to correct.This is especially true when the treatments are done in an aggressive fashion.Options to correct this include revision liposuction or fat transfer or a combination of both.Revision liposuction is based on removing residual fat on the high areas while fat transfer is based on grafting fat in the low areas.when there is sufficient fat left, revision liposuction can be successful and give great outcomes.When the primary treatment was done aggressively and there is little fat left to work with then both rivage in liposuction and fat transfer become less viable options.

Thank you for the photos and question and sorry for your complication.  That said the lines appear to be related to the technique used and though they may resolve on their own may require some type of non invasive massage therapy to improve the result.  So discuss this with your surgeon or other expert in the area.Dr. Corbin

After reviewing your photos the irregular surface areas could be reduced and evened out using smart lipo laser treatments.

Unfortunately we see this several times a year when patients come in looking for help after going to an office where overaggressive liposuction is done with a laser assisted device in the upper abdomen of a slender patient, an area that does not tolerate that treatment well. I do not know however if that is the case for you since we have no details on the treatment. It is extremely difficult to improve and unlikely to be totally corrected. However you should see someone, possible a physical therapist or a plastic surgeon who has an ultrasound massage device as soon as you can to get started on nonsurgical treatment. Do NOT let your surgeon go back and try to correct it with more suction.