Are braces better than Invisalign? Orthodontic treatments that use either braces or Invisalign are just few of the many techniques used by dental professionals in straightening the teeth of their patients. They straighten teeth to give them an ideal position, improve their look, and promote proper function.
1 Urethritis: Burning urination is often the result of urethritis, the infection of the urethra. 2  In men, urethritis can also cause penile discharge. 3  Pyelonephritis: Pyelonephritis occurs when a bladder infection spreads to the kidneys. 4  It can cause upper back and flank pain, shaking, chills, nausea and vomiting.
Causes and symptoms. The most common cause of pyelonephritis is the backward flow (reflux) of infected urine from the bladder to the upper urinary tract. Bacterial infections also may be carried to one or both kidneys through the bloodstream or lymph glands from infection that began in the bladder.