How Long After a Breast Reduction and Lift Before I Can Run Without Hurting the Result?

Recovery varies from patient to patient following breast
reduction surgery.We generally
recommend that patients avoid strenuous activities including running for a least
six weeks following surgery.Running in the immediate
post-operative period may adversely impact the aesthetic results following
breast reduction and lead to a higher rate of complications.The constant bouncing of the breasts can lead
to wound breakdown and spread of the scars.In addition the breasts may bottom out and develop recurrent sag.This is especially true when the
breasts are left relatively large following the procedure. It’s therefore
important that patients wear a quality support bra when running after breast
reduction procedures.It’s important to discuss this issue
with your plastic surgeon before running.Your surgeon has important information regarding your situation and when
it’s safe to resume this activity.

Thanks for the  question. Congratulations on having undergone breast reduction surgery;  it is one of the most patient pleasing operations we perform.
Generally, it is best to follow your surgeon's  guidelines in regards to return to activity/ exercise. Most of my patients are able to return to this type of activity about 4 to 6 weeks after the breast reduction surgery.
I hope this helps.