One nipple suddenly seems larger and i notice visible veins on that breast only.i'm only 39 and am not pregnant.should i get a mammogram asap?cancer?

Yes Get a Mamo: While this is unlikely to be breast cancer, new onset breast asymmetry should be evaluated by a physician and a mammogram would typically be part of that assessment in conjunction with a physical breast exam. .

See dr: You should see the dr and get a breast exam and a full clinical evaluation which may include the ordering of some diagnostic testing. Best wishes to you.

You should: first see your doctor for an evaluation. A mammogram and/or breast ultrasound may be indicated.