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In chronic retention, ultrasound of the bladder may show massive increase in bladder capacity (normal capacity is 400-600 ml). [citation needed] Non-neurogenic chronic urinary retention does not have a standardized definition; however, urine volumes >300mL can be used as an informal indicator. [7]
Bladder cancer is more common after the age of 40, and more common in men than women; [33] other risk factors include smoking and exposure to dyes such as aromatic amines and aldehydes. [33] When cancer is present, the most common symptom in an affected person is blood in the urine ; a physical medical examination may be otherwise normal ...
The x-axis is the volume of liquid and the y-axis is the intraluminal pressure of the bladder. In normal patients, the plot is a series of spikes whose local minimums form a non-linear curve resembling an exponential growth curve. The spikes correspond to the bladder contractions associated with the micturition reflex. The curve formed by the ...
Studies have shown that 5–15% of people who are 20–50 years old, 20–30% of people who are 50–70 years old, and 10–50% of people 70+ years old urinate at least twice a night. [3] Nocturia becomes more common with age. More than 50 percent of men and women over the age of 60 have been measured to have nocturia in many communities.
Among women with chronic pelvic pain, the most common comorbidities are endometriosis (70%), postpartum pelvic pain (44%), bladder pain syndrome (61%) and irritable bowel syndrome (39%).
The urine volume is measured (this shows how efficiently the bladder empties). High volumes (180 ml) may be associated with urinary tract infections. [5] A volume of greater than 50 ml in children has been described as constituting post-void residual urine. [6] High levels can be associated with overflow incontinence.
Without diagnostic evaluation, the cause of underactive bladder is unclear, as there are multiple possible causes. UAB symptoms can accurately reflect impaired bladder emptying due either to DU or obstruction (normal or large storage volumes, elevated post-void residual volume), or can result from a sense of incomplete emptying of a hypersensitive bladder (small storage volumes, normal or ...
loss of bladder control (incontinence) or overactive bladder; (Although, the American Urogynecologic Society does not recommend that cystoscopy, urodynamics, or diagnostic renal and bladder ultrasound are part of initial diagnosis for uncomplicated overactive bladder.) [2] [3] unusual cells found in urine sample; need for a bladder catheter;
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