The bladder is the last organ of the urinary system through which urine passes before being expelled through the urinary meatus to the outside. The Bladder is a kind of bag in which the liquid produced by the kidneys is contained, all the waste in this state of matter produced by the body falls into it and therefore the composition of this viscera is complex between muscles and tissues serous that resist the chemistry of the impurities that pass through here.

The bladder is an organ that expands, and contracts according to the amount of liquid it contains. A person in a normal state of health and an adult age receives an average between 300 and 400 cubic centimeters of urine equivalent to 350 mL in each cycle of standard productivity of the urinary system, however, the bladder is capable of expanding to more than 3000 cubic centimeters, allowing a capacity of up to more than 3 liters of residual liquid from the body. Living beings mostly have a bladder, the shape of the human organ is funnel-shaped, like a cup. Other more complex anatomies have flattened and oval shapes.

Urination, which is the act of urinating, that is, emptying the bladder is announced in advance by a feeling of fullness in the pelvic area and some discomfort that cannot be considered pain in normal situations, this means that this organ is “warning” that it is time to empty it because it has its maximum normal capacity.

One of the conditions that most compromises and damages the bladder is cystitis, which is an inflammation of the ureteral ducts and the walls of the bladder, preventing normal filling of the bladder, producing a feeling of constant urge to urinate but without liquid to urinate, which causes even more pain. It is a very uncomfortable pathology, common in people who undergo surgical interventions that compromise the area or have infections in the urinary system. The body reacts by protecting its resources in an inflammatory way.