How long after BBL surgery can I stop worrying about possible complications like fat embolisms, hematoma and necrosis?

Those complications that you mention are immediate, that is, they can happen in the first days of the surgery. after that week you don't have to worry about those complications you say. There are others, it is best that you choose a good doctor who guarantees no complications.

Did you have an in person consultation?
Did you have multiple in person consultations vetting each plastic surgeon and comparing outcomes?
If the answer to those questions is no then I suggest you start the process from the beginning.
A thorough and in person consultation should have included the discussion of complications including what each complication is and how it’s managed.
If you’ve had consultations but I feel like there were questions that were not answered then you should follow up and have a follow up visit, preop visit or a second consultation with your provider
You should not feel uninformed going into this operation
Delivering consistent quality liposuction and fat transfer results is more difficult than most people believe.
The number of providers who do these procedures well it is relatively few.
Results are permanent and irreversible.
It is imperative patient properly vet providers comparing outcomes among different surgeons and choose the most talented and experience provider.
Personally I do not believe this is possible doing virtual consultations.
During each in person consultation ask each provider to open up their portfolio and show you their entire collection of before and after pictures.
Make sure they only show you pictures that are similar to your body characteristics.
Take notes about the thoroughness of each consultation including all aspects of the consultation including the discussion of risks benefits their incidences and how they are managed.
This should’ve been discussed with you before you scheduled surgery.
Most serious life-threatening complications present themselves within the first week or less.Fat embolism‘s will present within hours today’s and infections typically show 3 to 5 days after surgery. delayed infections are possible and after this procedure it’s possible to get an infection several weeks after the procedure
All patients having fed transfer will have fat necrosis. This is simply part of the procedure
Fat necrosis to the point of it being an issue is an example of poor surgical technique.
Symptomatic fat necrosis does not happen if the procedure is done correctly
In reality serious medical complications are exceedingly rare for this procedure though patients seem to worry a lot about them.
Disfigurement is far far more common and in the end it’s probably something much more worthy of being worried about.
I cannot emphasize enough the importance of properly vetting plastic surgeons and your selection process
I highly recommend people avoid traveling long distances for elective surgical procedures and highly recommend having multiple in person consultations well in advance of scheduling surgery.
Best,
Mats Hagstrom MD