Obstruction may refer to:

Places

Obstruction Island Obstruction Island is one of the San Juan Islands in San Juan County, Washington, United States. It lies off the southeast tip of Orcas Island, between it and Blakely Island Blakely Island (SENĆOŦEN: XEMXEMIȽĆ) in San Juan County, Washingto ...

, in Washington state * Obstruction Islands, east of New Guinea

Medicine

Obstructive jaundice Jaundice, also known as icterus, is a yellowish or greenish pigmentation of the skin and sclera due to high bilirubin levels. Jaundice in adults is typically a sign indicating the presence of underlying diseases involving abnormal heme meta ...

Obstructive sleep apnea Obstructive sleep apnea (OSA) is the most common sleep-related breathing disorder and is characterized by recurrent episodes of complete or partial obstruction of the upper airway leading to reduced or absent breathing during sleep. These episod ...

Airway obstruction Airway obstruction is a blockage of respiration in the airway that hinders the free flow of air. It can be broadly classified into being either in the upper airway (UPA) or lower airway (LOA). Airway obstruction is a life-threatening condition ...

, a respiratory problem **

Recurrent airway obstruction Recurrent airway obstruction, also known as broken wind, heaves, wind-broke horse, or sometimes by the term usually reserved for humans, chronic obstructive pulmonary disease or disorder (COPD) – it is a respiratory disease or chronic conditio ...

Bowel obstruction Bowel obstruction, also known as intestinal obstruction, is a mechanical or Ileus, functional obstruction of the Gastrointestinal tract#Lower gastrointestinal tract, intestines which prevents the normal movement of the products of digestion. Eith ...

, a blockage of the intestines. *

Gastric outlet obstruction Gastric outlet obstruction (GOO) is a medical condition where there is an obstruction at the level of the pylorus, which is the outlet of the stomach. Individuals with gastric outlet obstruction will often have recurrent vomiting of food that has ...

Distal intestinal obstruction syndrome Distal intestinal obstruction syndrome (DIOS) involves obstruction of the distal part of the small intestines by thickened intestinal content and occurs in about 20% of mainly adult individuals with cystic fibrosis. DIOS was previously known as ...

Congenital lacrimal duct obstruction Nasolacrimal duct obstruction is the obstruction of the nasolacrimal duct and may be either congenital or acquired. Obstruction of the nasolacrimal duct leads to the excess overflow of tears called epiphora. Sign and symptoms Excessive tear ...

Bladder outlet obstruction Bladder outlet obstruction (or obstructive uropathy) occurs when urine is unable to flow from the kidneys through the ureters and out of the Urinary bladder, bladder through the urethra. Decreased flow of urine leads to swelling of the urinary tra ...

Politics and law

Obstruction of justice Obstruction of justice, in United States jurisdictions, is an act that involves unduly influencing, impeding, or otherwise interfering with the justice system, especially the legal and procedural tasks of prosecutors, investigators, or other gov ...

, the crime of interfering with law enforcement *

Obstructionism Obstructionism is the practice of deliberately delaying or preventing a process or change, especially in politics. As workplace aggression An obstructionist causes problems. Neuman and Baron (1998) identify obstructionism as one of the three dim ...

, the practice of deliberately delaying or preventing a process or change, especially in politics *

Emergency Workers (Obstruction) Act 2006 The Emergency Services (Obstruction) Act 2006 (c 39) is an Act of the Parliament of the United Kingdom. It is intended to reduce the instances of obstruction of, or assaults on, emergency service personnel. Sections 1 to 6 came into force on 20 ...

Science and mathematics

Obstruction set Obstruction may refer to: Places * Obstruction Island, in Washington state * Obstruction Islands, east of New Guinea Medicine * Obstructive jaundice * Obstructive sleep apnea * Airway obstruction, a respiratory problem ** Recurrent airway obs ...

forbidden graph characterization In graph theory, a branch of mathematics, many important families of graphs can be described by a finite set of individual graphs that do not belong to the family and further exclude all graphs from the family which contain any of these forbidden ...

s, in the study of

graph minor In graph theory, an undirected graph is called a minor of the graph if can be formed from by deleting edges and vertices and by contracting edges. The theory of graph minors began with Wagner's theorem that a graph is planar if and only if ...

s in

graph theory In mathematics, graph theory is the study of ''graphs'', which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of '' vertices'' (also called ''nodes'' or ''points'') which are conne ...

Obstruction theory In mathematics, obstruction theory is a name given to two different mathematical theories, both of which yield cohomological invariants. In the original work of Stiefel and Whitney, characteristic classes were defined as obstructions to the exis ...

, in mathematics *

Propagation path obstruction In telecommunication, a propagation path obstruction is a man-made or natural physical feature that lies near enough to a radio path to cause a measurable effect on path loss, exclusive of reflection effects. An obstruction may lie to the side, abov ...

** Single Vegetative Obstruction Model

Sports

Obstruction (baseball) In baseball, obstruction is when a fielder illegally hinders a baserunner running within the basepath. Baserunners are generally permitted to run from base to base without being physically blocked or hindered by a fielder. The only time that a fi ...

, when a fielder illegally hinders a baserunner *

Obstructing the field Obstructing the field is one of the ten methods of dismissing a batsman in the sport of cricket. Either batsman can be given out if he wilfully attempts to obstruct or distract the fielding side by word or action. It is Law 37 of the Laws of cr ...

Places

Medicine

Politics and law

Science and mathematics

Sports

See also