The pain is often combined with fever, chills, nausea, vomiting, which does not bring relief. About a third of people with the disease and symptoms of kidney infection in the lower part of the urinary tract, including frequent and painful urination (called dysuria). When urination allocated turbid urine (in the presence of blood in it may acquire a reddish tint) with a sharp foul odor.

Chronic kidney infection differs of unclear clinical picture. In some cases the process takes a chronic course with no prior acute onset. The main kidney infection symptoms are chronic intoxication, delayed addition of body weight, pale skin, fatigue. Chronic renal disease occurs only in people who have any predisposing cause – full or partial occlusion (obstruction) of urinary tract, the large stones in the kidneys or the reverse current of urine from the bladder to the urethras in young children. Chronic renal disease may eventually damage the kidneys, to the extent that there is renal insufficiency.

In children, kidney infection symptoms are often mild and difficult to recognize. Prolonged inflammation of the pain may be vague, fever – is periodic or not occur at all. Older children may complain of pain in the lumbar region, but usually the children are not clearly localize the pain and complained of “abdominal pain”.

The most common symptoms of kidney infection are changes in urine – it becomes turbid due to leukocytes, protein, bacteria.

Thus, kidney infection symptoms may include:

• Disease begins acutely; there is high (up to 40 gr. C) temperature (fever), chills, heavy pot;
• Pain in the lumbar region, on the side of the affected kidney – stress the anterior abdominal wall, the sharp pain in the costovertebral angle;
• Malaise, thirst, dysuria or thamuria;
• Acceding headache, nausea, vomiting indicate a rapidly growing intoxication;
• Marked neutrophilic leukocytosis, aneozinofiliya, pyuria with moderate proteinuria and hematuria
• One or both kidneys may increase and become painful;
• Approximately 1 / 3 of people with kidney infection also experience symptoms of inflammation of the bladder (cystitis) – more frequent and painful urination.

The fact is that in different inflammatory processes, 70-80% of the bacteria enter through the blood into the kidneys. And if in the urinary system, there was the slightest failure, the kidneys at risk to “poison” of the slag and sick. Sometimes it happens quite often. To date, cystitis (inflammation of the bladder) and pyelonephritis (inflammation of the kidney and renal pelvis) are the most common diseases. Kidney infection affects children and adults, men and women. But still women affected more frequently than others. And this is connected with the peculiarities of anatomical structure. The length of the urethra (urinary canal) in men about 20 centimeters, in women only 2,5. The proximity of the urethra to the vagina and anus makes urinary tract more susceptible to infections. Therefore, statistics show that every woman at least once in life infected cystitis.

• Pregnant women when the fetus compresses the bladder and disrupts the normal circulation.
• Venous congestion of blood causes kidney infection;
• Young wives, when in frequent sexual intercourse occurs infringement urinary organs;
• Women with gynecological diseases, as well as elderly women when hormonal balance is disturbed;
• Fans of different diets, when the “grown thin” fat layer keeps kidney rather bad and thus occurs omission (nefroproz);
• Post-surgical patients requiring deduction of urine through the catheter, which is the source of kidney infection;
• People prone to infectious diseases (influenza, tonsillitis, acute respiratory disease) and dental caries;
• Men with inflammation of the prostate;
• People with a violation of the locomotor system;
• People leading a sedentary lifestyle, which violated phosphorus-calcium metabolism and it disrupts the kidneys;

Severe  symptoms may also include extreme fatigue, confusion, shaking, chill, vomiting, nausea, night sweats and high fever.

Infants and children can also get kidney infections. Their symptoms include appetite loss, irritability, bed-wetting and loose bowel movements.

In addition, the elderly can develop a different set of symptoms. They are blood poisoning, confusion, lower back pain and around the waist, a dull ache in the abdomen, exhaustion or a sharp stabbing pain in the abdomen too. Unlike most other people, the elderly are also at high risk for death from kidney infections as it is often a complication of another disease or illness and they have a reduced or weakened tolerance for bacteria, infections and the antibiotic treatments.

Kidney infections begin in the bladder because germs or bacteria move up through the tubes without resistance to the kidneys, multiply, form infections and cause kidney infection symptoms. Acute infections of the kidneys can end as rapidly as they occur suddenly. Chronic kidney infection progressively worsen but at a slow pace and can lead to kidney failure. Conditions that cause it are cancer, diabetes, pregnancy and infections in the urinary tract of women after sex.

Another condition that causes kidney infections is kidney stones. Kidneys stones form from lack of water in the kidneys. One example is taking a pill without enough water. Some say the lack of water cannot properly pass through the kidneys without leaving a trace of chemicals from the oral dosage. The chemical reaction without enough water to flush through the kidneys causes kidney stones.

Drinking enough water at all times on a daily basis can prevent kidney stones as well as dehydration.

Dehydration can also cause kidney infections and other complications. Severe dehydration can resemble kidney infection symptoms too. Symptoms include a burning pain while urinating, fever, nausea, abdominal pain, fatigue and confusion.

Antibiotics are used to clear up kidney infections within one to two weeks using simple dosages. Chronic kidney infection does not always respond to antibiotics and may require a hospital stay for up to six weeks in order to examine urinary tract abnormalities and to receive intravenous antibiotics.