Many techniques are available that can help patients achieve high levels of comfort and safety following surgery, including interventional methods as well as pain medications. Pain control after surgery contributes to the healing process. If pain is not adequately controlled following surgery, patients may not be able to perform the functions necessary to heal satisfactorily. Functions like taking deep breaths, getting out of bed and walking can be difficult after surgery and sometimes require interventional pain management methods. If pain is allowed to persist the resulting inactivity can lead to severe problems such as pneumonia or an embolism.