Kidney pain commonly occurs in the flank area of the body, which is the upper back or abdomen. An issue with the kidneys or urinary tract or dehydration may cause severe or constant pain in these areas, and medical attention should be sought, according to Healthline and Mayo Clinic.
The pain may feel dull or sharp. Fever or body aches and fatigue accompanied by flank pain are also possible signs of kidney issues. Blood in the urine or cloudy urine may signal that blood is not circulating properly in the kidneys or a blood clot may be present, according to Mayo Clinic.