Skip to main content Skip to navigation

Orthopedic Treatment For Baker’s Cyst

Last updated: February 7, 2026 Medically reviewed by: RxHarun Orthopedic Specialist Doctor Reading time: 2 min read

A fluid filled cyst or small sac that forms behind the knee joint is referred to as the Baker’s Cyst. It is also named as Popliteal Cyst. This condition occurs when the joint functioning is hampered due to an internal cause such as damage to the soft tissue structures, Arthritis etc. Such conditions provoke excessive synovial fluid development within the joint which tends to get stored in a soft tissue sac resulting in the formation of a cyst. In normal conditions, the synovial fluid helps to reduce friction between the constituent bones and makes it feasible for us to flex, rotate and move the legs and the knee. However, excessive build up can cause some discomfort which may require immediate medical attention.

Causes

  • Knee injury may alter the flow and distribution of fluid in the joint
  • Osteoarthritis
  • Rheumatoid Arthritis
  • Damage caused to the joint cartilage

Symptoms

  • Pain while flexing the knee
  • Tightness due to the fluid accumulation as the skin around the joint also stretches
  • Swelling or inflammation at the back of the joint
  • In case the fluid filled sac breaks and the fluid outflows into the lower leg, redness and inflammation may occur in the lower extremities
  • Visibly prominent bulge behind the knee
  • Some patients may feel as if water is running down their legs
  • Inflammation in the calf area

Diagnosis

  • The affected joint and leg are observed in detail and the patient may be questioned about the symptoms, past injuries and the onset of the condition
  • MRI test may be required for detailed view of the knee joint and the affected soft tissue structures
  • X-ray imaging may be done
  • Ultrasound testing may be suggested

Treatment

  • The cyst tends to dissolve on its own over the time in most cases. If the symptoms persist or get aggravated, the following methods may be adopted.
  • Draining the excess fluid using a needle which is referred to as Needle Aspiration
  • Ice therapy may provide relief
  • Injecting steroids into the joint to reduce inflammation and pain
  • The knee may be wrapped in a removable bandage for slight compression and support
  • Weight bearing should be avoided for some time and use of crutches or a walker may be recommended
  • Some pain killers and anti inflammatory medicines may be prescribed
  • Maintaining a healthy body weight to avoid stressing the joint may be recommended
  • Gentle exercises that promote range of motion may be incorporated in the daily schedule
  • In case the underlying cause is a cartilage tear, surgery may be required to treat it
  • Physical activity needs to be avoided for some time and the affected joint should be given adequate rest

Frequently Asked Questions

Is this article a replacement for a doctor?

No. It is educational content only. Patients should consult a qualified clinician for diagnosis and treatment.

When should I seek urgent care?

Seek urgent care for severe symptoms, rapidly worsening condition, breathing difficulty, severe pain, neurological changes, or any emergency warning sign.

References

Add references, clinical guidelines, textbooks, journal articles, or trusted medical sources here. You can edit this area later with a custom field named _rx_references.

Related Articles

Polyglandular Autoimmune Syndrome Type 1 (APS-1)

September 30, 202523 min read0 views

Polyglandular autoimmune syndrome type 1 (APS-1)—also known as autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED)—is a rare, inherited immune-system disease caused by harmful changes in the AIRE…

Read more

Written by Dr. Harun Ar Rashid, MD - Arthritis, Bones, Joints Pain, Trauma, and Internal Medicine Specialist

Dr. Md. Harun Ar Rashid, MPH, MD, PhD, is a highly respected medical specialist celebrated for his exceptional clinical expertise and unwavering commitment to patient care. With advanced qualifications including MPH, MD, and PhD, he integrates cutting-edge research with a compassionate approach to medicine, ensuring that every patient receives personalized and effective treatment. His extensive training and hands-on experience enable him to diagnose complex conditions accurately and develop innovative treatment strategies tailored to individual needs. In addition to his clinical practice, Dr. Harun Ar Rashid is dedicated to medical education and research, writing and inventory creative thinking, innovative idea, critical care managementing make in his community to outreach, often participating in initiatives that promote health awareness and advance medical knowledge. His career is a testament to the high standards represented by his credentials, and he continues to contribute significantly to his field, driving improvements in both patient outcomes and healthcare practices. Born and educated in Bangladesh, Dr. Rashid earned his BPT from the University of Dhaka before pursuing postgraduate training internationally. He completed his MD in Internal Medicine at King’s College London, where he developed a special interest in inflammatory arthritis and metabolic bone disease. He then undertook a PhD in Orthopedic Science at the University of Oxford, conducting pioneering research on cytokine signaling pathways in rheumatoid arthritis. Following his doctoral studies, Dr. Rashid returned to clinical work with a fellowship in interventional pain management at the Rx University School of Medicine, refining his skills in image-guided joint injections and minimally invasive pain-relief techniques.