Baker's Cyst Information

Last updated on 27 April 2021 by Danniel Jacques (B.Med.Sci UNSW)

What is a Baker’s Cyst?

Baker's Cyst

A baker cyst is a painful condition which can be characterised by swelling in the back of the knee.

This swelling occurs due to inflammation in the synovial joint which encapsulates the knee resulting in the out-pouching of fluid into a little balloon type sac from the synovial lining.

When this condition develops, synovial fluid (which is normally contained in a tough capsule that encases the knee joint) collects in the baker’s cyst and bulges behind the knee.

This is also called a “popliteal cyst” as it directly affects the popliteal region of the knee (that shallow depression located behind the knee joints).

If left untreated it is possible for it to rupture. A ruptured baker’s cyst may then cause the collected synovial fluid to transfer and travel down the calf muscles of the legs. This can then trigger rapid swelling and discomfort of the leg which may then cause further complications.

What Causes a Baker’s Cyst?

Baker’s cysts are quite common and can be caused by nearly any joint-related inflammation. Some of the most common causes may include;

  • A micro tear in the knee’s meniscal cartilage
  • Repetitive stress injury.
  • Wear & tear in the knee (which is more common in older adults)
  • Injury to the anterior cruciate ligament of the knee (ACL injury)
  • Sports-related injury that affects the knee
  • The type of work that a person does may also make them more susceptible. This include jobs that involve being on your knees, such as a gardener or carpenter. Also such jobs that require long shifts without sitting or unusual weight loading through the knees such as nursing.

A baker’s cyst is also know as a >> popliteal cyst

What are the Symptoms of a Baker’s Cyst?

Symptoms may include visible swelling or protrusion on the back of the knee (which can be either with our without pain), constant and prolonged knee pain, and tightness at the back of the knee or simply a feeling of tenderness at the back of the knee.

If left untreated a baker’s cyst may actually rupture. A ruptured or burst baker’s cyst can cause a lot of pain and discomfort and can present very similarly as a blood clot as there will also often be calf related pain.

How is a Baker’s Cyst Diagnosed?

It is always best to visit a qualified medical professional if you suspect that you have either a baker’s cyst or feel that your baker’s cyst may have ruptured or burst.

Your doctor will likely require you to have an ultrasound which will be able to confirm a diagnosis of baker’s cyst and also importantly rule out or alert the doctor of any existence of a blood clot.

If there is an infection suspected then a blood test and maybe an aspiration of the synovial fluid may be required for testing and culturing. In some cases an x-ray and or MRI may also be required to rule out any co-exist conditions that may have contributed to the condition.

Next Page: Learn the answers to the most common questions asked about treating a baker’s cyst, including:

Testimonials

Real accounts by real people. Hear what they have to say!

Baker's cyst

Thank you I was happy to receive the patches and they did work for me. I had quite the lump behind my left knee. The pain has gone leaving just a little lump. So surgery will not be on my list I did half to use 13 of the patches. Thanks again

Martha H
Alberta, Canada
Baker's cyst behind knee and calf pain

I’ve had a Baker’s cyst behind my right knee, caused by a knee injury, for 4 years. It is excruciatingly painful. I received cortisone injections every 3 months to ease the pain, but to no avail. Luckily, I stumbled upon your OSMO patches online. I put one behind my knee and one on the front […]

Wayne S
New Jersey, United States
Baker's Cyst

I don’t know how to submit a testimonial, so I am just sending you a thank-you note. I had a baker’s cyst over a year ago, and with time (months), it diminished. Doctor said he did not recommend anything but the R.I.C.E. therapy (which helped some). Thought it was a one and done, but no. […]

Regina L
GA, United States
Baker's cyst

I have used the patches for a week now and am happy to say that the swelling of my bakers cyst has reduced to the point of very little pain now. I am so pleased that I will tell my consultant about the patches, and my daughter who is a holistic nutritionist. She will recommend […]

Marianne N
Arezzo, Italy
Baker's cyst

Just want you to know that I was able to walk on the treadmill for 30 minutes yesterday without leg pain for the first time in over 2 years!  Thanks.

Bob R
Ohio, United States
Baker's cyst

Hi Toky, how are you? I ordered the patch because I have a meniscus tear on my knees which allows fluid to build into a baker’s cyst. The cyst I have on my right knee is larger than the left. So bending my knees is very uncomfortable because of the pressure and can be very […]

Debra W
Alberta, Canada
Bakers cyst on the knee

I got the patches yesterday evening. I have had five knee operations on my right knee and have arthritis. I also have a bakers cyst on the back of my knee and off to the front. I tried it last night and I was surprised at the results and it actually took away some of the swelling. I work out every other day and I think these will help.

Thanks

Leo J
Alabama, United States
Baker's Cyst

I just want to let you know that I had a very painful Bakers Cyst behind my right knee. I had around 20 patches, one each night and the cyst has gone. Such a great relief from the pain. I am back again buying more as I have some fluid on top of the knee, […]

Carole M
London, UK
View More Testimonials Disclaimer
Have a Question?
Close

Do you have a question about OSMO Patch?

Simply complete the form below and we will get back to you shortly. Please note, our response does not constitute medical advice. Please consult your medical practitioner:

  • This field is for validation purposes and should be left unchanged.
Back to Top