The bursa layer is located near the knee joint, is a small fluid sac that serves as cushion against friction between bones, muscles and tendons. Most common location for knee bursitis takes place around the knee cap. Symptoms of knee bursitis include but not limited to swelling, warmness, pain, and difficulty flexing/extending knees. Risk factors include but not limited to osteoarthritis, obesity, playing certain sports like soccer, volleyball, basketball. Diagnosis is made via MRI, ultrasound, examination and history taking. Treatment include but not limited to anti-inflammatory medications, corticosteriod injections, physical therapy, fluid aspiration, and surgical removal of bursa.