Urinary Tract and Kidney Infections A urinary tract infection
(UTI) is a very common medical complication of pregnancy. Unless
treated, a UTI can cause serious problems in pregnancy. Normal
urine is sterile. It contains fluids, salts, and waste products,
but is free of bacteria, viruses, and fungi. The tissues of the
bladder are isolated from urine and toxic substances by a
coating that discourages bacteria from attaching and growing on
the bladder wall. The main parts of the urinary tract are: Two
kidneys. A pair of purplish-brown organs located below the ribs
toward the middle of the back. Two ureters. Narrow tubes that
carry urine from the kidneys to the bladder. Bladder. A
triangle-shaped, hollow organ located in the lower abdomen. Two
sphincter muscles. Circular muscles that help keep urine from
leaking by closing tightly like a rubber band around the opening
of the bladder. Urethra. The tube that allows urine to pass
outside the body. Click Image to Enlarge Pregnancy and urinary
tract infections During