Thought lower back pain was kidney related had cmp blood test done came back normal. could it still be kidneys causing this pain & not show up test?

Yes: A kidney stone will not cause CMP results to be abnormal. A kidney infection also may not show up in CMP. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. Get HPV vaccine.

Yes: A tumor, clot, stone, or focus of infection in a kidney can hurt without and change in blood work.