Hi. i have been having lower back ache and numbness and tingling in my left leg. i had an x-ray of my entire spine and it was normal. could this be cancer? are spinal tumors missed upon x-ray? 25 year old?

Many things can cause the symptoms you are having. You likely need an MRI of your lumbar/sacral spine to find out what is causing your symptoms. You may need to see a neurologist for further testing as well. Do you have any history of back trauma? Go to the nearest ER for any worsening of symptoms. See your doctor for further testing and referrals to neurology and/or spine specialist. Good luck!

Agree with Dr Ferranti, as it may well be that you have a "pinched nerve" in your lower back causing the left leg issues. A normal X-ray will not reveal internal problems in the lumbosacral cistern. Perhaps you would benefit by a second opinion.

I think that you're being evaluated by a neurologist is inevitable and you could save a lot of time by seeing a neurologist straightaway. A herniated intervertebral disc in the lumbosacral spine is high on the list of possibilities.

You likely need an MRI of your lower spine to find out what is causing your symptoms. You may need to see a neurosurgeon for further testing and treatment. Do you have any history of back trauma? Any problems using the bathroom? If so go to the nearest ER for any worsening of symptoms. See your doctor referral to spine specialist.