This is a condition which occur when germ infect the tract that carries urine out of body (urethra, bladder, kidney or tubes).It is not a fatal condition but need to be take care because this is the way through which infection can reaches to the kidney.
The most common infective agent of UTI is Escherichia coli. These bacteria normally live in the colon and around the anus.
•    Therefore most common causes of UTI are improper wiping and sexual intercourse. Some other causes are Poor hygiene, Regular use of public toilet and catheterized for long periods.
•    A condition that obstructs or blocks your urinary tract or preventing you fully emptying your bladder, such as kidney stones, spinal cord injury, enlarge prostate etc(bacteria can easily multiply if urine stays in bladder)
•    A person with week or hypersensitive immune system from chemotherapy or HIV can be easily affected with UTI.
•    UTI is also common in pregnancy
Symptoms which occurs in UTI
•    Painful urination.
•    Burning micturiation
•    Frequent urge to urinate -- although the urine passed is minima
•    Pain in lowerabdomen and back.
•    Your urine is cloudy red and smells bad.
•    Fever and chills may or may not associated with nausea and vomiting.
•    Frequent urination.