Women who urinate frequently need to be alert to urethritis, acute cystitis, chronic pyelonephritis, chronic renal insufficiency and other diseases. 1. Urethritis: Urethritis refers to inflammation of the mucous membrane of the urethra, and patients will mainly experience frequent urination, painful urination, urinary urgency and other symptoms. 2. Acute cystitis: acute cystitis is an acute inflammatory disease of the bladder wall caused by non-specific bacterial infection, patients will experience frequent urination, urinary urgency, painful urination, and in severe cases, it can also lead to renal failure and uremia. 3. Chronic pyelonephritis: pyelonephritis refers to the inflammation of kidney and renal pelvis, mostly caused by bacterial infection, patients will have symptoms such as fatigue, low fever, frequent urination, and some of the patients will also have symptoms of anemia. 4. Chronic renal insufficiency: In early renal insufficiency, the glomerular filtration rate is normal, but the tubular concentrating function decreases, and a polyuric phase occurs, causing frequent urination. When the symptoms of frequent urination in women, should promptly go to the hospital for urine and blood routine and urethral secretion examination, clear cause with the doctor after active treatment.