There could be many causes. Some are obvious, like a knife to the thigh, but that probably isn't it, since you are asking. Bone disease, cancer, or just cramps or circulation problems could be culprits. It could also be psychological or exercise or stress related. The best idea is to go see a doctor and get it checked out.
Possible hernia. Get checked out.
There are many potential causes, from psychological to very serious medical. Please see a doctor to determine what is going on.
It is problems with tendons and causes sharp pain in tendons
what causes sharp middle back pain to the buttock and stiffness to the right leg and cause falling down
what causes inner thigh cramp
its litter germs and its sharp from vet Emily
An emotional shock or pain can cause a sharp intake of breath.
I don't know but I am having the same issues. I really wish I knew what was going on.
early morning pain thigh and leg
There are various things that would cause a burning pain in left inner thigh and lower leg pains. The main cause of such a condition is believed to be the femoral nerve dysfunction.
Asritis
You may have pulled a muscle or hurt it somehow