Should I have muscle tightening to improve my tummy tuck results? (Photo)

It is important to consult with an experienced plastic surgeon who can customize your surgical plan and determine the best technique for you based on your individual anatomy and goals.
It sounds like you're dealing with some ongoing concerns after your tummy tuck, especially with the lower abdominal bulge and discomfort. The surgeon will need to determine if this is excess skin, fat, or an underlying abdominal wall (fascia/muscle) issue. They will also need to determine if you have any underlying bursa/seroma cavity.
Krishna Vyas, MD, PhD, MHSHarvard, Hopkins, & Mayo Clinic Trained Aesthetic Plastic SurgeonNew York, New York

Dear Gregarious759079,
I understand your concern. However, without a proper assessment, it would be difficult to determine what is wrong. It is best that you visit your plastic surgeon for further assessment or ask for a second opinion. Only after a thorough examination, you can get proper recommendations and advice.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

Your lower abdomen still may be swollen sending on how far out you are from Tummy tuck. That said, this is most likely a step off deformity that would need liposuction to improve. Additionally, your muscles should have been tightened at the time of tummy tuck and is you had a “drain less” tummy tuck this could be residual seroma formation. You may want to have your surgeon perform an Ultra Sound to rule out seroma and then consider liposuction with heat such as Renuvion to improve your contour deformity.