Medical Questions? Ask a Doctor Online!
This is Dr. David
yawning causing knee pain doesn't point to any specific causes.
you most likely have arthritis inflammation in your knee or tendonitis of your knee
or you could have torn a meniscus in your knee.
how did you hurt your knee
how old are you?
have you tried to ice your knee?
have you tried any NSAIDs like ibuprofen or naproxen sodium?