Will gynecomastia surgery negatively affect my tattoo? (photo)

It's going to depend on what you have done. If you are having liposuction alone, then no, the tattoo should be fine. If you have to excise any tissue, it could affect the tattoo. The best person to answer this question would actually be your surgeon. Best of luck.

I think the surgery will only affect the scar if only the gland is being excised. It does not look like you will need skin removed, based upon your photo.