Injection snoreplasty is a minimally invasive office procedure for patients with primary snoring. Developed by doctors in the US Army for soldiers with disruptive snoring, this procedure is effective in properly selected patients. Snoring is caused by vibration of the palate; the procedure involves injection of a stiffening agent into the soft palate just above the uvula (punching bag). Over a period of several weeks, the tissues become stiff and snoring is diminished. Bed partners notice a marked reduction in snoring intensity. This procedure is well tolerated with most patients returning to work the next day.