The best ways to get answers are to search for them, exactly what you are doing right now. We are glad that you ended up here and we are looking forward to providing you with helpful information. This is something that happens to quite a few people that do not know what the cause is.
The knee is a joint that connects bones and allows for motion. There is cartilage that protects the bones from rubbing together, there is a joint capsule that holds lubricating fluid inside, and there are ligaments that hold everything together. It is a lot more complicated than what was just described, but this is a basic description. When you hear noises during the range of motion it could mean a few things. It could mean that there is something wrong with the ligaments, the cartilage, or both.
If the sound happens and there is no pain associated with it, then it could be caused by soft tissues. Possibly the patella could not be tracking right and rubbing against structures that surround it. If there is a noise and there is pain associated with it, then it could indicate a problem with the meniscus. It is recommended to schedule a visit to with a Physician at your local Osteo Relief Institute to find out the exact cause of the knee popping and cracking is, and whether or not treatment is necessary.
