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Kidney infection or pyelonephritis corresponds to a urinary tract infection in which the causative agent manages to reach the kidneys and cause inflammation, leading to symptoms such as renal colic, foul-smelling urine, fever and pain when urinating, for example.
This type of infection can be caused by bacteria, such as Escherichia coli (E. Coli), as well as by fungi of the Candida species, and even by viruses. Usually, kidney infection is the result of a bladder infection that lasts longer and causes the infection-causing microorganisms to reach the kidneys, causing inflammation. In the case of chronic kidney infection, in addition to infection by a microorganism, the presence of lesions in Organs urinary organs or kidney stones can also cause the appearance of the kidney infection.
Kidney infection should be diagnosed and treated as soon as it is discovered, to avoid serious damage to the kidneys or causing septicemia, in which the microorganism can reach the bloodstream and go to different parts of the body, causing infection and being able to put the person's life at risk. Understand what septicemia is.
Symptoms of kidney infection may appear suddenly and intensely, disappearing after a few days (acute kidney infection), or without signs and symptoms, with the infection developing over time and, if left untreated, can progress to renal failure (chronic kidney infection).
The main symptoms of kidney infection are:
- Crampy-like pain;
- Severe pain in lower back;
- Difficulties urinating;
- Desire to urinate frequently and in small amounts;
- Pain or burning when urinating;
- Smelly urine;
In the presence of any of these symptoms, a urologist or nephrologist should be consulted, who will diagnose the disease by evaluating the symptoms. The doctor will also do a physical exam, such as palpation and percussion in the lower back, and a urinalysis to check for blood or white blood cells. See how the urine test is done.
Kidney infection of pregnancy
Kidney infection in pregnancy is quite common and is usually the result of a prolonged bladder infection.
In pregnancy, increased levels of hormones, such as progesterone, lead to relaxation of the urinary tract, facilitating the entry of bacteria into the bladder, where they multiply and cause inflammation of the organ.In cases where the infection is not diagnosed or treated effectively, the microorganisms continue to multiply and begin to climb the urinary tract, reaching the kidneys and causing inflammation.
The treatment of kidney infection during pregnancy can be done with antibiotics that do not harm the baby. Learn how to cure urinary tract infection in pregnancy.
The most common cause of kidney infection is due to infection by the bacterium Escherichia coli, which lives in the intestines, and which can be transferred from the anal region to the genitals when a person does not perform proper hygiene after passing stool. or after intimate contact. This bacteria enters the urinary tract through the urethra, which is the tube that carries urine out of the body, and can multiply, reach the bladder and travel up to the kidneys.
Other bacteria from infections in other parts of the body can also spread through the bloodstream and reach the kidneys, causing kidney infection, especially in people with infections in some artificial joint, prosthesis or heart valve, for example.
Kidney infection can also be caused by the fungus Candida albicans that is part of the normal vaginal bacterial flora and when there is a lack of control of the flora, this fungus can multiply and enter the urethra, going up to the kidneys.
Also, certain factors such as kidney problems, kidney stones, diabetes, or a weakened immune system, can increase your risk of developing kidney infection.
How the treatment is done
The treatment of kidney infection will depend on the cause of the infection and whether it is acute or chronic. In cases where the infection is caused by bacteria, treatment consists of the use of antibiotics, for a period that can vary from 10 to 14 days depending on medical advice. Some analgesics or anti-inflammatories are also indicated to relieve pain.
The most effective treatment for chronic kidney infections is to eliminate their causes. Some kidney infection medications, such as antibiotics, can also be used to treat chronic kidney infection if there are signs of bacterial infection.
During the treatment of kidney infection, drinking large amounts of water is important to facilitate the healing of the disease.