Causes of foam in female urine

Urinary tract infection is a disease that affects both men and women. But sometimes, problems with urine do not necessarily mean a urinary tract infection, but may also mean problems with other organs. When foam appears in a woman's urine, it is best to go to the hospital for a check-up, because this situation is likely caused by increased urine protein or kidney disease.

The presence of protein in urine is called proteinuria, also known as urine protein. Normal urine contains a small amount of small molecule protein, which cannot be detected by routine urine tests. When the protein in urine increases, it can be detected by routine urine tests and is proteinuria. Proteinuria is a common manifestation of kidney disease and may also occur in systemic diseases.

The clinical manifestations of low back pain caused by different causes are also different, for example:

1. Functional proteinuria

Functional proteinuria is a mild (24-hour urine protein quantity generally does not exceed 0.5 to 1 gram), temporary proteinuria. The proteinuria disappears rapidly after the cause is removed. It often occurs in young and middle-aged people, and can be seen after mental stress, severe cold or heat, long-distance marches, strenuous physical labor, congestive heart failure, and eating a high-protein diet.

2. Postural proteinuria

There is no protein in the urine in the early morning, but proteinuria gradually appears after getting up and moving around. The protein content in the urine increases when standing, walking or strengthening the lordotic posture for a long time. The protein content in the urine decreases or disappears after lying down for 1 hour. This often occurs in young people or adults with a slender body shape. Recurrent postural proteinuria requires the exclusion of renal disease, such as the nutcracker phenomenon (also called left renal vein compression syndrome, which is caused by compression of the left renal vein by the aorta and superior mesenteric artery).

3. Pathological proteinuria

Proteinuria persists, the protein content in the urine is relatively high, and routine urine examination often shows hematuria, leukocyturia and tubular urine. It may also be accompanied by other manifestations of kidney disease, such as hypertension, edema, etc. Pathological proteinuria is mainly seen in various glomerular and tubulointerstitial diseases, hereditary kidney diseases, renal vascular diseases and other kidney diseases.