SymptomsBy Mayo Clinic Staff
In some cases, a Baker's cyst causes no pain, and you may not notice it. If you do have signs and symptoms, they might include:
- Swelling behind your knee, and sometimes in your leg
- Knee pain
- Stiffness and inability to fully flex the knee
Your symptoms may be worse after you've been active or if you've been standing for a long time.
When to see a doctor
If you have pain and swelling behind your knee, see your doctor. Though unlikely, a bulge behind your knee may be a sign of a condition more serious than a fluid-filled cyst.
June 12, 2015
- Helfgott SM. Popliteal (Baker's) cyst. http://www.uptodate.com/home. Accessed April 27, 2015.
- Imboden JB, et al. Approach to the patient with knee pain. In: Current Rheumatology Diagnosis & Treatment. 3rd ed. New York, N.Y.: The McGraw-Hill Companies; 2013. http://www.accessmedicine.com. Accessed April 27, 2015.
- Arthritis of the knee. American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=a00212. Accessed April 27, 2015.