The cause of a leg pain can be related to the involvement, we also need to clarify the extent of the leg pain, whether it is the whole leg or only the thigh or calf. Most commonly it is related to sports injuries, such as overloading and over-exercising, and it can also be related to nerve compression, such as compression from lumbar disc herniation, spinal stenosis, spinal tumors, and to sciatic nerve compression. Sometimes there is also a relationship with deep varicose veins in the lower limbs. So there are many reasons for leg pain, if it cannot be relieved by rest, braking, hot compress, physical therapy, massage, you need to actively find the cause and actively treat it after a clear diagnosis.