Knee pains

Patient : When injuring a knee , is it possible for you to re injure it ? Also , I want to know why everytime I extend my knee it starts to pop.
Doctor :   Thank you for your question. It is certainly possible to re-injure a previously injured knee joint. If it is has not he aled adequately, it becomes prone to re-injury. This becomes especially evident if you have torn a ligament in the knee such as the ACL (anterior cruciate ligament) or MCL (medial cruciate ligament). We recommend that you exercise caution in your daily activity to prevent re-injury especially when playing sports or exercising. Popping of the joints is a common phenomenon and is often fairly benign and is not something to be concerned with. The cause of this is not fully identified but the medical community has some theories as to why this happens. One theory is that when articulating joints are moving, the repositioning of the bones results in a cracking or 'popping' sound. A second theory is that this sound may be caused by the movements of ligaments or tendons moving as the joint articulates. Lastly, this sound is believed to be caused by the rapid movement of synovial fluid (the the fluid that protects and lubricates joints), in and out of the joint as it moves. Whatever may be the cause, this should not be something to worry about. Thank you for choosing

Related Q&A

Q: My name is Carlton Jackson. My date of birth is April 3, 1955. In the spring of 1973 I hyperextended my left knee w...

Q: I ama 68 year old female who has been very active. Have not been exercising during last month due to cataract surger...

Q: My daughter was playing volleyball and dove/slide in for the ball. She said it hurt her right knee. But she was outsi...

Q: My knee is severely swollen (size of a grapefruit). I had an xray which was normal. It hurts a ton on the inside of m...

Q: When i went up the stairs i got knee pain as if its twisting on the inside. INtense pain for at least 5 minutes cant ...


Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon