Is this normal for 4 days after surgery (bra line lift) and can I sleep on my back? (Photo)

Thanks for providing photos.  It appears as though you have some tension or irritation at the incision line and it will be important to follow closely with your surgeon for instructions on management.  Be sure your garment is not rubbing in that area.  With regard to sleeping position, for this operation it may be better to sleep on your back to avoid an "arms up" posture that may result from side or stomach sleeping.  I would worry more about pulling and tension at the incision line than direct pressure, but again it depends on exactly what was done so your surgeon can give you the best advice.  Please contact them for follow up exam and instructions.

Thank you for your question about the recovery from a bra line lift, specifically whether it's normal to sleep on your back and the state of your back four days post-operation.
Communicating with your plastic surgeon for advice tailored to your specific case is vital, as surgical methods and recovery protocols can vary. For most patients following a horizontal torsoplasty, or bra line lift, it is typically encouraged to lie on their back right after the procedure. This practice aids in the healing process and can help flatten the scar.
Concerning your incision line, it's crucial to consult with your plastic surgeon. There seems to be an area of black scar beneath your tattoo that needs careful examination and attention. This area of skin may be at risk and could open up. It may not necessarily be an infection, but possibly an area with compromised blood supply.
In conclusion, you should contact your surgeon as soon as possible to address these concerns. I hope this helps to answer your questions regarding the recovery from a bra line lift.
Sincerely,
Dr. Katzen

Thank you for your question and picture, I would recommend you sleep on your stomach for a few weeks, see your PS to discuss your concerns.

I encourage you to contact your surgeon's office to discuss your concerns. There seems to be an area where the tissue may be compromised a bit. As far as sleeping on your back, each surgeon has her/his own post operative protocol. Your surgeon is most familiar with the details of your surgery and how you've been progressing through recovery. It is important that you keep her/him aware of any concerns you may have.

Hello! Thank you for your question. Every plastic surgeon has his/her own postoperative protocol and recommendations for post-operative care. So answers here may vary. It is important that you follow your surgeon’s instructions to ensure the best results. For that reason, you should speak with your plastic surgeon. 
Matthew A. DelMauro, M.D.

is different for everyone but as the others have mentioned, you have a small spot on your right side that could be an area of compromise.  This should heal but could leave more scarring.  As for concerns, activities, and wound care, it is best to ask your surgeon.  Your surgeon should be accessible for any of your post-op concerns and to get any reassurances you need.

Hello and thank you for your question. It looks like some impending superficial dead skin. Should respond well to topical antibiotic ointment twice daily. I would try to not sleep on it if possible. Most importantly however is to either see or notify your plastic surgeon asap.Peter Fisher M.D