As a non-surgical procedure, PDO Threads are considered very low risk. There is no downtime required. Mild symptoms that are typical include redness or soreness on the treatment site, which usually go away after a few hours or up to a day. If you are dissatisfied with your results, which is a risk associated with any cosmetic procedure being performed on your face, talk to Dr. Nikfarjam as he may recommend additional thread lift sessions to give you the results you desire.