Sometimes people have knee swelling and this problem is called bursitis.
Bursitis is an inflammation of the bursal sac.
There are several such bags around the knee that contain some lubrication and reduce friction between skin and bones or between muscles and bones. They certainly reduce this friction, but people sometimes rub their knees so stubbornly against the floor that the bags themselves become inflamed.
Crawling on the floor, cleaning the carpet, laying linoleum or praying on your knees can damage the bag from excessive zeal.
Therefore, inflammation of the bag in front of the patella is called the housekeeper's knee.
Sometimes the bag rubs, and sometimes something sticks into it. Many do not remember exactly how they injured their knee. Although it could have been a needle lying on the carpet.
It's all about the nerves. Or rather, in their absence.
There are very few nerve endings on the skin above the kneecap (and above the elbow) that could feel pain.
Try to grab more skin in front of the kneecap with two fingers and squeeze as hard as possible. You will have to try very hard to hurt.
That is why people crawl on their knees, stumble upon various debris or needles, without even noticing it. Pretty disappointing.
I think this is why some patients try to heal their aching knees by crawling on the floor. Is this what people think about?
If the swollen knee is bent, then the inflamed bursa contracts and the pressure in it increases. It turns out that at first it is harmful to crawl with a knee, and then it is harmful to bend the knee.
In short, the knee can swell if you regularly crawl on it or even just stand. Better not to do that. If you still get sick, then go to the surgeon.
