Urinary Tract Infections
Symptoms of Urinary Tract Infections
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The symptoms of cystitis include urgency (the overwhelming need to pass urine) frequency (the need to pass urine often) and dysuria (pain or a burning sensation on passing urine, or difficulty in passing urine). Dysuria is also a common feature of urethritis caused by some sexually transmissible pathogens.
Infected urine may be cloudy. This can be due to the presence of pus in the urine - known as pyuria. If infected urine appears dark in colour, this may be due to the presence of blood - haematuria. In pregnancy, urinary tract infections may be asymptomatic: the pregnant mother may appear perfectly healthy.
Urinary tract infections can ascend above the bladder to cause pyelonephritis . The symptoms are similar to those of lower urinary tract infections, but also include pyrexia (a raised body temperature) and loin pain. Symptoms of urinary tract infection can mimic those of acute appendicitis. Proteus mirabilis is associated with renal stones, Staphylococcus aureus can cause renal abscesses, and Mycobacterium tuberculosis is the cause of renal TB. The latter condition commonly presents as persistent pyuria (presence of pus in the urine), sterile upon normal culture. |
Page edited April 2006
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