My mother's knee suddenly hurts. Who can help? Urgent!

Joint noise, one is physiological and the other is pathological. Generally speaking, those who only blink and have no painful dyskinesia belong to physiological blink. Pathological joint snapping usually considers local ligament strain, joint capsule relaxation, bone spur, osteoporosis and other reasons. Generally, it is necessary to go to a regular hospital as soon as possible to find out the reason and carry out physical therapy or local blocking treatment.

Suggest symptomatic pain relief, straight leg lifting exercise in bed, and wish an early recovery!

I hope my answer is helpful to you.