A herniated disc in the back cancause sciatic like symptoms of pain that radiates from the lower back and down into the legs and calves. It can also cause pain in the butt and tail of the spine and can cause pain running down the legs and numbness in one leg. Typical symptoms include feelings of muscle weakness in the legs, sciatic nerve pain, pain in the back leg muscles, tingling in the nerves of the leg, and pain behind the knees. Treatments include ice and heat therapy, anti-inflammatory drugs, pain medications, exercise, physical therapy, steroids to decrease inflammation, and sometimes surgery.
You can strain or tear one or more of your hip flexors when you make sudden movements such as changing directions while running or kicking. Sports and athletic activities where this is likely to occur include running, football, soccer, martial arts, dancing, and hockey. In everyday life, you can strain a hip flexor when you slip and fall, for example.