Can urine routine test detect nephritis? Symptoms of urinary tract infection are like this

In many cases, when you experience physical discomfort in your life, you will do a routine urine test to determine the final condition. In fact, if you want to know whether you have nephritis, you can also do a urine routine test. It should be noted that it is best for patients with kidney disease to use morning urine for the test.

1. Can nephritis be detected by urine routine test?

Urinalysis for urinary system diseases is not only a commonly used examination method for patients with kidney disease, but also an auxiliary analysis tool for certain other diseases. Many patients often go to the hospital for routine urine tests when they feel unwell to check for proteinuria and other conditions to prevent kidney disease. However, some patients cannot understand the results after the examination. Now we simply analyze the results of routine urine examination.

It is best for patients with kidney disease to use morning urine for examination. Urine specimens should be collected from midstream urine: that is, part of the urine should be discharged first to flush away the bacteria remaining in the urethral opening and anterior urethra, and then the midstream urine should be collected for testing.

Care should be taken not to bring non-urine factors into the urine: for example, female patients should not mix leucorrhea and menstrual blood, and male patients should not mix prostate fluid.

The color of normal urine is mainly caused by urochrome, whose daily excretion is roughly constant, so the depth of urine color changes with the amount of urine. Normal urine is straw yellow, and abnormal urine color may change due to food, medicine, pigment, blood and other factors. Normal urine is mostly clear and transparent except for women's urine which is slightly turbid. If it is left for too long, it will become slightly turbid. This is because the acidity and alkalinity of the urine change, and the mucus protein, nucleoprotein, etc. in the urine gradually precipitate.

2. Symptoms of urinary tract infection

Urinary tract infection here refers to urethra and bladder infection. The channel through which urine flows from the bladder to the outside of the body is called the urethra. The urethra and bladder are closely connected. Urinary tract infection often ascends and causes bladder inflammation. Urinary tract infections come from E. coli bacteria that inhabit the vagina and move into the urethra. These bacteria are found in all women. Men can also get this disease, but it is less common. Male urinary tract infections are usually caused by sexually transmitted diseases. Nonspecific urethritis and gonorrhea are two STDs that most commonly cause inflammation of the urethra and bladder.

Bladder inflammation can be divided into acute cystitis, chronic cystitis, urethral syndrome, glandular cystitis, as well as non-infectious interstitial cystitis and radiation cystitis according to the cause, pathology and pathogenesis. Pyelonephritis can also be divided into acute pyelonephritis and chronic pyelonephritis. In addition, infections of the kidney itself include renal papillary necrosis, renal cortical abscess, renal abscess, perinephric abscess, etc.

Acute cystitis: In women, it is often caused by ascending urethral infection, occasionally spreading from pyelonephritis. The disease often occurs after sexual intercourse, fatigue or catching a cold. The main clinical manifestations are sudden onset, very obvious frequent urination and urgency, urination 1 or 2 times per hour, or even 5 to 6 times or more. Severe frequent urination is like urinary incontinence. There is a burning sensation in the urethra when urinating, and the amount of urine each time is not much, even less than 10-20ml, which is the so-called bladder irritation sign. There may be lower abdominal pain at the end of urination, turbid urine, and sometimes macroscopic hematuria, which is clinically known as acute hemorrhagic cystitis. There are a large number of pus cells or red blood cells in the urine, but no casts. Symptoms may disappear within a few days. Systemic symptoms are minimal or absent. Male cystitis is often secondary to prostatitis and kidney infection, or caused by prostate hypertrophy accompanied by residual urine.