This is a reason to see a doctor.
Experts from the British Prostate Cancer Foundation have reported that pain in the hips, spine or upper legs can be a symptom of prostate 
cancer.
In addition to pain in the legs, symptoms of a dangerous cancer include discomfort during ejaculation, problems with urination, and the presence of blood in the seminal fluid.
If at least one of these symptoms appears, experts recommend that you immediately consult a doctor for diagnosis. The disease develops slowly and can proceed for years without specific symptoms.
Prostate cancer https://en.wikipedia.org/wiki/Prostate_cancer is one of the most common oncological diseases. It accounts for more than 14% of all malignant tumors diagnosed in men.
