Very long Mondor's Cord? Is this bad that it's so long and painful? (Photo)

This can be dealt with by breaking up the linear scar that is formed when the vein contracts.  It can be done in the office with massage.  I would say it needs to be broken into small segments.

Thank you for the photo. Yes, it looks like a Mondor's Cord.
Yours is a bit larger than the usual. These usually resolve with time. It should not effect the result of the breast surgery. Always best to let your board
certified plastic surgeon know what is going on with your recovery.

This will resolve spontaneously. As
time passes, the clot will liquefy and normal flow within the vein will return.
In the meantime, ibuprofen, Tylenol will help with the discomfort. Hang in
there . . . this will get better. Thanks for sharing.

I am sorry to hear about the problem you are experiencing. Yes, the segment of involved vein can be quite long occasioanally. Unfortunately, besides warm compress and anti-inflammatories (and “tincture of time”), there are no other remedies that I am aware of.  Please make sure that your plastic surgeon  has examined you also. Best wishes.

lindyloo03, Although annoying, superficial vein thrombosis running  from the inframammary incision toward (or all the way to) the umbilicus) is not dangerous or serious. This occurs when a vertically oriented superficial vein is divided by the inframammary crease incision.  Generally it takes about 4-6 weeks to resolve, and has no systemic concerns or local sequelae. Local application of warm compresses and oral anti-inflammatories are the mainstay of treatment, but when I see these, they can be stretched linearly and the column of clotted blood disrupted, leading to immediate relief of the pulling sensation. This is not dangerous, as the blood is sequestered within the vein, and does not have the potential for release into the general venous circulation as an embolus, but it is also something that you cannot likely do yourself. You may wish to ask your surgeon about this.  I hope that this helps.