A single photo can raise the question of implant position, but it is not enough to diagnose symmastia. In your photo, the breasts do appear close in the midline, but true symmastia is usually judged by whether the skin over the breastbone is lifted or tented and whether the implant pockets cross too far toward the center. That has to be checked in person, often while you are standing, lying down, and moving your arms. At almost 6 months, this is a reasonable concern to discuss with your surgeon. The key questions are whether there is medial pocket over-dissection, implant malposition, or simply close cleavage/settling. If true symmastia is present, correction may involve an internal pocket repair, capsulorrhaphy, reinforcement with an internal bra or mesh in selected cases, and sometimes implant size or pocket changes. The exact plan depends on your tissue quality, implant size, pocket plane, and exam findings. Unless there is pain, skin thinning, infection, or a rapidly worsening change, revision is usually planned after the tissues have stabilized, often around 6 to 12 months or longer. An in-person assessment with your original surgeon, and possibly a second opinion from a board-certified plastic surgeon who does revision breast surgery, would be the safest way to decide whether revision is actually needed.