The knee is the supporting joint of the human body. Apart from supporting the human body, the knee joint also provides cushion when you run, jump or walk.

The knee is made up of bones, ligaments, tendons and muscles. If there is damage to one part of the knee joint it will cause pain.

There are many causes of back knee pain. By knowing some of the possible causes of knee back pain, you can know the right time to go to the doctor and get the appropriate treatment to avoid more serious damage.

Causes Pain In Back of Knee

1. Baker’s cyst

Baker’s cysts are lumps on the back of the knee filled with fluid that build up and swell, causing pain. This fluid is a synovial fluid and normally functions as a lubricant for the knee joint.

When you suffer from arthritis or injury, too much of this fluid is produced by the body, which can build up and form cysts.

At first, this cyst may not be painful, but over time the cyst will enlarge and press on the muscles, tendons, nerves so that it becomes more painful or tingling occurs.

Sometimes a Baker’s cyst goes away on its own but if it doesn’t go away it can be treated with steroid injections or physical therapy.

It is important to treat the problem that is causing the cyst to prevent its recurrence.

2. Knee Ligament Injury

There are 4 different ligaments in the knee joint: Anterior Cruciate Ligament, Posterior Cruciate Ligament, Lateral Collateral Ligament, Medial Collateral Ligament.

Injury to one of these ligaments or connective tissue can cause back pain in the knee. The injuries that occur can range from a stretch to a tear. You will feel stiff, painful when moving, and have difficulty walking.

This injury usually occurs during sports such as playing soccer or jumping movements.

Read more: Knee Ligament Injury Treatments

3. Meniscus Injury

The meniscus is a cartilage bearing on both sides of the knee. Excessive activity when twisting or bending the leg can cause a tear in the meniscus.

The most common location is the back side of the knee. The pain from a tear in the meniscus may not appear immediately but will get worse over the course of a few days.

Read More: Knee Meniscus Injury treatments

4. Hamstring Muscle Injury

The hamstring muscles consist of the semitendinosus, semimembranosus and biceps femoris muscles. This muscle functions to bend the knee. Injury to the hamstring muscle can cause pain in the back of the knee.

5. Knee Arthritis

Arthritis is an inflammatory process in the cartilage of the knee. Osteoarthritis is the most common type.

This inflammatory process can occur gradually over time due to age, heredity, injury, infection, or obesity.

This situation can cause pain in the back of the knee. Several other types of knee arthritis:

  • Rheumatoid arthritis is an autoimmune disease that attacks the joints
  • Gout arthritis is inflammation of the joints due to a buildup of uric acid crystals

Read more: Knee Arthritis Treatments

6. Gastrocnemius tendinopathy

Symptoms of this disease are usually such as cramps and tight muscles in the calf area near the knee.

This happens when doing sports without stretching first. The pain can last from a few seconds to minutes.

7. Deep Vain Thrombosis (DVT)

This disease occurs due to blood clots that block the veins in the legs. The pain is most felt when standing.

Unhealthy lifestyles such as obesity, smoking and rarely exercising can be risk factors.

Other symptoms include:

  • The skin becomes red and warm to the touch
  • Swollen Legs
  • feel limp

DVT requires immediate help because blockages in the blood vessels can escape and clog up the pulmonary veins.

The treatment of this disease is with blood thinners so as to prevent new clots from forming.

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