What causes kidney pain

Many people do not understand what kidney pain is. In fact, kidney pain is a deep pain. When kidney pain occurs, it is mostly a colic and stabbing pain that makes the patient extremely painful. In severe cases, it can cause fainting and loss of consciousness. The causes of kidney pain are mostly due to some kidney diseases, the most common of which are kidney stones, kidney cysts, or ureteral stones in the urinary system, which can easily induce such symptoms. When kidney pain occurs, it often leads to inflammation, which can cause the patient to have blood in the urine, difficulty urinating, and even urinary retention, which has a great impact on the patient's health. If you do not pay attention to timely treatment, it may even induce uremia.

What are the causes of kidney pain?

1. Kidney pain caused by infection. The most common pathogen is Staphylococcus aureus. Bacteria can enter the kidneys through the blood from purulent lesions in other parts of the body, such as boils, sores, abscesses, infected wounds, upper respiratory tract infections, and infections of tissues adjacent to the kidneys. In the early stage, the lesions are limited to the renal cortex to form multiple tiny abscesses, which may then aggregate into multi-chamber abscesses. In some patients, small abscesses may merge into large abscesses and become renal pain. In a few patients, in the late stage, the renal pain near the cortex may break through the capsule and develop into perinephric abscesses. The abscesses near the renal calyx may perforate and drain into the renal pelvis, and bacteria may be found in the urine.

2. Other reasons such as cysts and stones can also cause kidney pain. Usually ureteral stones can cause severe pain. Renal cysts and various types of nephritis can also cause kidney pain due to damage to the renal interstitium. After sitting for a long time or walking for a long time, you may feel soreness and swelling in the kidneys.

How is kidney pain diagnosed?

1. Kidney pain may have no symptoms in the early stage, and the primary infection focus may have healed and been ignored. In the later stage, renal pain may appear, with sudden onset and accompanied by chills, high fever, loss of appetite and other manifestations of bacteremia or toxemia. Renal pain, tenderness, and percussion tenderness may occur on the affected side. Sometimes, low back pain affects leg movement and discomfort, swollen kidneys can be felt, and the waist muscles are tense.

2. Regarding the diagnosis of kidney pain, there is a history of infection, such as upper respiratory tract infection, furuncle, abscess, wound, etc. High fever, chills, symptoms of bacteremia, low back pain, lumbar tenderness, percussion pain, and swollen kidneys can be felt. The diagnosis can be made with the help of blood urine test, B-type ultrasound and CT scan.

3. Related auxiliary examinations can also help patients make a diagnosis, such as an increase in white blood cells, an increase in segmented nuclear cells, and positive blood bacterial culture; pus cells in the urine, bacterial growth in urine culture, and bacteria can be found in urine sediment smear staining;

4. Abdominal X-ray films showed that the affected kidney was enlarged and the renal shadow was blurred; intravenous urography showed that the renal calyces in the lesion area were compressed and deformed; B-ultrasound showed an irregular outline of the abscess, and the abscess was a low-echo area; CT renal scan showed a circular bloodless area, and the CT value was between a cyst and a tumor.