21 wks post op, my stomach is uneven, rippling, dents. What went wrong with my liposuction? Is it fixable with revision? (photo)

I am sorry that you are unhappy, and from your photos, it is obvious that something is not right. The irregularities are likely the result of excess skin and not from a poor-fitting garment. You should speak with your surgeon, but I suspect some skin removal through a tummy tuck/mini tummy tuck/modified tummy tuck will be necessary. Repeat liposuction may make things even worse. 

Absolutely. We would recommend the Hidef Liposuction Revision Technique in our office that uses liposuction, lipocavitation, liposculpture, Liposonix, Ultherapy, skin tightening, fibrous release, and fat grafting. Best, Dr. Karamanoukian#Realself100 Surgeon

Thank you for your pictures. You have significant contour deformities of your abdominal wall secondary to a very aggressive liposuction. This can be improved with several surgeries of fat grafting.

Liposuction done in a very superficial plane can result in skin irregularities.  Also the use of extraneous energy such as ultrasound or laser can exacerbate skin irregularities such as burns to the dermis.  Postop seromas can cause scarring and irregularities to the skin.  I would first ensure you do not have a seroma.  If you do it needs to be drained or excised.  Then, I would conisder fat grafting to correct the irregularities.  Finally an abdominplasty may be the best option.  Discuss all these options with your surgeon.  Best wishes!

I would need to examine you personally for specific diagnosis but it looks as though there is a surplus of skin on the abdominal wall. An abdominoplasty is some sort might be necessary to solve this problem.

It is possible at four months for you to still have swelling. If it's tender it's probably still swollen. If it changes during the day it's probably still swollen and if you massage the area and it changes or gets softer it is still swollen. If it still swollen trying to massage the area or rolling on a medicine ball may help to smooth out the areas. In my experience ultrasound or infrared therapies may make it worse and not better.If you do a revision you should probably wait as long as possible and should be more than six months because if you go back to surgery and is still swollen it's difficult to get a good result.

The skin issue can be a problem due to uneven harvesting or removal of fat, or excess skin or both. Best to be seen in person but would also give it a few more months to heal.

Need to see a before photo... But it appears as if the surgeon did a poor lipo with much unevenness... Only IN PERSON examination allows us to determine if your result is correctable... 

Your concern of your liposuction deformities are noted. As an official VASER trainer, we see liposuction deformities referred to our office weekly. The definitive gold standard correction technique for your deformities will require a combination of VASER liposuction and Renuvion skin tightening technology. Your deformities can be optimally and consistency corrected. Please consider a Skype or Facetime consulation with a VASER specialist to get accurate recomendation and pricing. 
Respectfully,
Dr. Mowlavi
Real Self 100 Hall of Fame Inductee