“It is absolutely normal for knees to give a cracking sound when you are active,” Singh said. What if my knees only crack during certain kinds of physical activity like running, walking or squats? Should I stop? “A knee crack by itself does not indicate presence of any disease.” “Do not allow these sounds to make you feel abnormal or mentally stressed, or limit your functional activities,” Singh said. However, if you have had a recent trauma to your knee and your knee started to crack after that event, you should see a doctor even in the absence of pain. Singh says the intensity of the crack’s sound follows the same principle if there is no pain associated with it, you should not be concerned. “Typically, there is no concern if there is no pain associated with knee cracks.” “You should not be worried if your knees crack often as long as it is not associated with pain,” Singh said.

Should I be worried if my knees crack often or loudly? This collapse of gas bubbles could also lead to knee cracking. MRI studies have revealed that the displacement of the joint surfaces forming the knee joint can create a vacuum, and the compression of the joints can lead to flow of synovial fluid into the joint, which can lead to the collapse of gas bubbles formed in this process.

“Typically, degenerative changes are common in older people, so a degenerative change-associated knee crack may be found commonly in older people.” “The degenerative changes can also lead to pain and/or locking of the knee joint,” he said. If the various soft tissues such as cartilage or meniscus have degenerated, resulting in loss of smooth cover of the knee joint, and leading to knee cracks during various activities.If the thigh muscle (quadriceps) is too tight, it can pull the kneecap and affect its free gliding movement, generating a knee crack.A large-sized kneecap that does not fit well into the groove, thus producing a cracking sound during activities such as running and jogging.Singh adds that a painless knee crack could come from multiple sources: “If it is painful, then you should see a health care provider.” “Knee cracking could mean lots of things,” said Harshvardhan Singh, Ph.D., assistant professor with UAB’s Department of Physical Therapy. Sometimes it can be an unpleasant experience, but one researcher at the University of Alabama at Birmingham says typically, there is no need for concern. UAB’s Harsvardhan Singh, Ph.D., says typically, there is no concern if there is no pain associated with knee cracks.You might have heard this sound before: the loud pop or crack of someone else’s or your own knees.

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