I have pain behind my left knee?

I have pain behind my left knee. I didn’t hit it, or had any specific accident. The pain just started to appear for no reason at all. It is a mild pain when I am sitting down, but it gets bad wehen I run and lift my foot off the ground. It gets especially bad when I cross my knee over my other leg. What can be the problem and how can I get it to feel better?

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Age:24
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Dr. Javez Ernesto
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Dr. Javez Ernesto

This is probably due to overuse, repetitive use, overloading, or misuse of the patellofemoral joint. Your best course of action is to consult with a physiotherapist and follow a physical therapy program. This usually involves a number of specific exercises along with pain relief treatments involving TENS, hot and cold packs, US (ultrasound), and anti-inflammatory medications such as ibuprofen can also help. You should also mention and discuss with your physiotherapist which exercises and movements are giving you pain and decide which exercises you need to avoid or modify.