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(blad'er), [TA]
A distensible musculomembranous organ serving as a receptacle for fluid, such as the urinary bladder or gallbladder. See: detrusor.
See: detrusor.
[A.S. blaedre]
Farlex Partner Medical Dictionary © Farlex 2012


a. Anatomy Any of various distensible membranous sacs, such as the urinary bladder or the swim bladder, that serve as receptacles for fluid or gas.
b. Medicine A blister, pustule, or cyst filled with fluid or air; a vesicle.
c. An item resembling one of the membranous sacs in animals: the bladder of a buoyancy compensator.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


A membranous sac that serves as a reservoir for urine. It is fed via a ureter from each kidney, and empties urine via the urethra. It is lined by a specialised layer of epithelium (the urothelium) and is surrounded by two thick layers of smooth muscle.

Superior and inferior vesical arteries, umbilical artery, vaginal artery.

Vesical venous plexus.
Vesical nervous plexus.
Embryonal origin
Urogenital sinus.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Change of life, climacteric, 'time of life'  Gynecology The cessation of menstrual activity due to failure to form ovarian follicles, which normally occurs age 45–50 Clinical Menstrual irregularity, vasomotor instability, 'hot flashes', irritability or psychosis, ↑ weight, painful breasts, dyspareunia, ↑/↓ libido, atrophy of urogenital epithelium and skin, ASHD, MI, strokes and osteoporosis–which can be lessened by HRT. See Estrogen replacement therapy, Hot flashes, Male menopause, Premature ovarian failure, Premature menopause. Cf Menarche.
Menopause–”…what a drag it is getting old.” Jagger, Richards
Bladder Cystourethritis, frequency/urgency, stress incontinence
Breasts ↓ Size, softer consistency, sagging
Cardiovascular Angina, ASHD, CAD
Endocrine Hot flashes
Mucocutaneous Atrophy, dryness, pruritus, facial hirsutism, dry mouth
Neurologic Psychological, sleep disturbances
Pelvic floor Uterovaginal prolapse
Skeleton  Osteoporosis, fractures, low back pain
Vagina Bloody discharge, dyspareunia, vaginitis
Vocal cords Deepened voice
Vulva  Atrophy, dystrophy, pruritus
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


(blad'ĕr) [TA]
1. A distensible musculomembranous organ serving as a receptacle for fluid, as the gallbladder or urinary bladder.
See: detrusor
2. Synonym(s): urinary bladder. Synonym(s): vesica (1) .
[A.S. blaedre ]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
Bladderclick for a larger image
Fig. 69 Bladder . Summary of bladder control.
Bladderclick for a larger image
Fig. 68 Bladder . The mammalian bladder.


a hollow muscular bag situated in the lower abdominal cavity of mammals serving as a reservoir for urine from the kidneys. The bladder is composed of an internal epithelium surrounded by a coat of smooth muscle running in both circular and longitudinal directions, contraction of which causes complete collapse of the bag-like shape. The flow of urine down the URETERS from kidneys to the bladder is continuous, the amount depending on body fluid levels. When the bladder is empty the opening to the outside is closed by an internal SPHINCTER of smooth muscle which, like the bladder muscle, is controlled by the AUTONOMIC NERVOUS SYSTEM. When full, the internal sphincter relaxes under nervous control and urine enters the URETHRA (the duct to the outside), but is prevented from being voided by contraction of an external sphincter of striated muscle. Regulation of the sphincter (and thus or urine release or ‘micturition’) is under voluntary nervous control.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005


The muscular sac or container that stores urine until it is released from the body through the tube that carries urine from the bladder to the outside of the body (urethra).
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

Patient discussion about bladder

Q. What is involved in Gall Bladder surgery?

A. If you refer to removal of the gal bladder due to stones, then it may be performed either in an open approach (using an arch-like incision in your right upper abdomen) or in a laparoscopic approach (using only three small incisions to insert devices into your abdomen). The operation itself is not long and not associated with significant problems after it.

Q. How to prevent getting a bladder infection? I am worried about getting another bladder infection like I just had now. I am during my second trimester. How can I avoid getting it again?

A. drink more cranberry juice,its 100% natural, and wont harm the baby in anyway.

Q. can a bladder infection affect male's ability to have sex?

A. I haven't heard about such an association However, this is only general statement, so if you have any concerns you may want to consult a doctor.

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More discussions about bladder
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References in periodicals archive ?
Rise in prevalence of these diseases and rapid increase in the global geriatric population are inducing high demand for effective treatment of overactive bladder, which in turn is propelling the growth of the global overactive bladder treatment market.
Repeat CT images showed successful reduction of the small bowel from the hernia, but persistent incarceration of the urinary bladder within the left inguinal hernia (figure 2).
Keywords: Concurrent chemo-radiation therapy, Deranged renal profile, Muscle invasive bladder cancer, Organ preservation, Trimodality therapy.
Mucinous adenocarcinoma of the bladder is a specific subtype and characterized by large lakes of extracellular mucin containing tumor cells (Figure 2).
Sachin explains that approximately one-in-three bladder cancer cases are linked to smoking, due to carcinogenic chemicals in tobacco passing through the bloodstream and into the urine which is stored in the bladder.
In the study, which compared the results of Bladder EpiCheck to the current gold standard follow-up sequence (cystoscopy, cytology and pathology verification), Bladder EpiCheck demonstrated a clinically relevant and high negative predictive value (NPV), with NPV of 99.3% and sensitivity of 91.7% (both excluding patients with low-grade tumors) and specificity of 88%.
Bladder injury is a condition most likely due to high impact trauma.
The bladder can partially or entirely herniate into the inguinal canal; when the whole bladder and ureters migrate into the scrotum, it may cause obstruction, calculi, vesicoureteral reflux, hydronephrosis, infection, and acute renal failure [9, 10].
A It's possible that an artificial bladder rather than a bladder transplant is on the cards.
In the supine position, we first performed an incision originating from superior of the umbilicus and enlarged through the adjacent part of the exstrophic bladder mucosa and extended to the paraexstrophic skin to the urethral plate (Figure 1b).
This work show an evaluation of the relevant scientific literature available about bladder explosion to define the etiology of this complication, we point out the prevention strategies and discuss the possible connection between these unusual complications.