Has my abdominal muscle repair failed? (Photo)

It seems like you are healing quite well.  I do not see any major bulging from the top of your tummy.  Please see your surgeon if you are concerned, however.The upper bulging you experience occurs after eating because the stomach expands to handle the food before digestion.  When tummy muscles are loose, this is not as noticeable.To further tighten abdominal muscles after tummy tuck, I recommend ab and core workouts beginning 8 weeks to 12 weeks after surgery.Dr Spies

Unfortunately it's very hard to tell without examining you in person. Make sure to express your concerns to your surgeon so that they can examine you.

There are a couple of things to consider with your healing period from your tummy tuck. While you are likely able to handle your normal daily activities the swelling and healing of the sutures is still in progress. If you are feeling any pain or discomfort from your strain that was experience, your best option may be to see your surgeon in person to have the area evaluated.Swelling can persist for several months and will gradually improve and will look better at three months, six months, and even one year. Frequently the pubic area and the scrotal and penis area for men can become very swollen and discolored during the first two weeks due to gravity as this is the lowest area for swelling to accumulate.Best of luck!

in the upper abdomen after a tummy tuck with muscle plication as the plication pulls your tissues towards the midline and the like how the Rockies were formed, the fullness is very similar.  If you're convinced you tore something, ask your surgeon as you can be checked by doing a crunch and feeling the midline of your abdomen.  I'm doubtful you tore anything or sutures failed but confirm with your surgeon.

it could be you have some separation of the upper repair, but that would probably take quite a bit of exertion at 5 weeks. See you doctor, get an ultrasound, and wait a month or two to let things quiet down.