Why does your knee hurt on right leg the side with sharp pains especially when you squat kneel twist it or go up down stairs and straightened feel hear see pop out?

Possible causes of knee pain on the right leg:

1. Meniscus tear: A meniscus tear is a tear in the cartilage that cushions the knee joint. Meniscus tears can occur due to sudden twisting or pivoting movements, or they can develop gradually over time. They are more common in people who are active in sports or who have a history of knee injuries.

2. Patellar tendonitis: Patellar tendonitis is inflammation of the tendon that connects the kneecap to the shinbone. It is commonly caused by overuse, such as running or jumping too much, or by sudden trauma to the knee.

3. Iliotibial band syndrome (ITBS): ITBS is a condition that causes pain on the outside of the knee. It is commonly seen in runners and cyclists who increase their training distance or intensity too quickly.

4. Osteoarthritis: Osteoarthritis is a degenerative joint disease that causes the cartilage in the knee to wear down. It is most common in older adults, but it can also occur in younger people who have a history of knee injuries.

5. Baker's cyst: A Baker's cyst is a fluid-filled sac that can develop behind the knee. It is usually caused by an underlying knee condition, such as osteoarthritis or a meniscus tear.

6. Patellofemoral pain syndrome (PFPS): PFPS is a condition that causes pain in the front of the knee. It is commonly seen in people who are active in sports that involve running or jumping.

If you are experiencing knee pain on the right leg, it is important to see a doctor for evaluation. They will be able to determine the cause of your pain and recommend the best treatment options.

While you are waiting to see a doctor, you can try the following tips to relieve your pain:

* Rest your knee and avoid activities that make the pain worse.

* Ice your knee for 20 minutes at a time, several times a day.

* Compress your knee with an elastic bandage.

* Elevate your knee above your heart to reduce swelling.

* Take over-the-counter pain medication, such as ibuprofen or acetaminophen.