The inability to urinate and the feeling of always having the urge to urinate is usually caused by drinking too much water, and in women during pregnancy due to the increasing pressure of the uterus on the bladder, both of which are normal physiological phenomena. It can also be caused by physiological factors such as mental stress or cold environment, and is normal if it is not accompanied by symptoms such as painful urination and urgency. In addition, it may also be caused by a variety of pathological factors, such as inflammation, neurological diseases, occupational lesions, etc. I. Physiological factors: 1. mental tension: if the patient is too nervous, it can lead to nervous system reflex disorders, which can lead to neurogenic urinary frequency, incomplete urination, the feeling that there is always an urge to urinate; 2. cold stimulation: if you are in a colder environment, less water evaporates through the skin, so urination is the body’s main way of metabolizing water, and cold can also have some effect on antidiuretic hormone The cold can also have a certain effect on the secretion of antidiuretic hormone, leading to a reduction in secretion, which can lead to the phenomenon of incomplete urination and the feeling that there is always an urge to urinate. Second, pathological factors: 1, inflammation: if the patient suffers from cystitis, urethritis, paraurethritis, prostatitis and other diseases, due to inflammatory stimulation can lead to frequent urination, and usually accompanied by symptoms of urinary urgency, painful urination, urinary volume; 2, neurological diseases: if the patient suffers from hysteria, neurogenic bladder and other central and peripheral neuropathy, can also appear frequent urination, usually not accompanied by symptoms of urinary urgency, painful urination; 3. Occupational lesions: If patients suffer from bladder tumors and other bladder occupational lesions, this can lead to changes in bladder volume and the above-mentioned situation; female patients with ovarian cysts and other uterine occupational lesions can also compress the bladder, which can lead to symptoms of incomplete urination and always having the urge to urinate; 4, other: If patients suffer from diabetes, uremia, bladder stones, or are in the polyuric phase of acute renal failure, lesions around the urethra, etc. diseases, it can also lead to the appearance of frequent urination. If caused by pathological factors, it is recommended that patients go to the hospital in a timely manner to clarify the cause and carry out targeted treatment, frequent urination can usually be gradually relieved with the cure of the original disease.