@miracle95 Hi and welcome to Mayo Connect. I am so sorry to hear about your husband's back pain. Hopefully tomorrow's MRI will shed some light on why. I have a PNET that has spread to my liver and bones. I do not get back pain from the cancer in my bones even though it was present in my spine on a few scans. I did have back surgery over 25 years ago, so I understand back pain. Has he tried any stretching or physical therapy to help with the pain?