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or intramuscular tissue space isolated by fascial planes. This is a key anatomical feature that helps prevent injuries from causing massive blood loss. In most cases a hematoma as a sac of blood eventually dissolves; however, in some cases it may continue to grow due to blood seepage or show no
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The slow process of reabsorption of hematomas can allow the broken down blood cells and hemoglobin pigment to move in the connective tissue. For example, a patient who injures the base of their thumb might cause a hematoma, which will slowly move all through their finger within a week.
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Some hematomas are visible under the surface of the skin (commonly called bruises) or possibly felt as masses or lumps. Lumps may be caused by the limitation of the blood to a sac,
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543:– subcutaneous extravasation of blood in a thin layer under the skin, i.e. bruising or "black and blue", over 1 cm in diameter
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In most cases, movement and exercise of the affected muscle is the best way to introduce the collection back into the bloodstream.
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change. If the sac of blood does not disappear, then it may need to be surgically cleaned out or repaired.
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and is initially in liquid form spread among the tissues including in sacs between tissues where it may
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649:. Illustrated by Perkins, James A. (10th ed.). Philadelphia, Pennsylvania. p. 101.
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A misdiagnosis of a hematoma in the vertebra can sometimes occur; this is correctly called a
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medication (blood thinner). Blood seepage and collection of blood may occur if
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The
English word "hematoma" came into use in 1826. The word derives from the
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537:(purple) – a bruise about 3–5 mm in diameter, generally round in shape
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can reduce mobility of a member and present roughly the same symptoms as a
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Left to right: Epidural, subdural, and intracranial hematoma of the brain
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Kumar, Vinay; Abbas, Abul K.; Aster, Jon C., eds. (2017-03-28).
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and solidify before blood is reabsorbed into blood vessels. An
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232:
625:"Information on Hematoma Types, Causes, and Treatments on"
531:– small pinpoint hematomas less than 3 mm in diameter
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Intramuscular hematoma development and progression on the
494:
475:– between the skin and the layers of cartilage of the ear
425:. Commonly caused by vacuum delivery and vertex delivery.
1147:
231:
They may occur among and or within many areas such as
564:, a suffix forming nouns indicating a mass or tumor.
711:
574:
Metanephric dysplastic hematoma of the sacral region
60:. Unsourced material may be challenged and removed.
228:is a hematoma of the skin larger than 10 mm.
1746:
831:
644:
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376:Hematoma of the ankle caused by a 3rd degree
274:route; to avoid this, heparin must be given
27:Localized bleeding outside of blood vessels
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677:: CS1 maint: location missing publisher (
162:
315:is the main determinant of this process.
120:Learn how and when to remove this message
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336:(buildup of cells) or a benign tumor.
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298:from 6 hours after trauma to 86 hours
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58:adding citations to reliable sources
29:
174:(bruise), a simple form of hematoma
24:
25:
1766:
707:
339:
258:A collection of blood (or even a
1494:platelet storage pool deficiency
1446:Heparin-induced thrombocytopenia
789:
34:
391:Intramuscular hematoma (inside
45:needs additional citations for
1213:Activated protein C resistance
685:
638:
617:
591:
384:Subdermal hematoma (under the
13:
1:
584:
1307:Trousseau sign of malignancy
547:
7:
1627:Nonthrombocytopenic purpura
1203:Antithrombin III deficiency
697:Online Etymology Dictionary
567:
10:
1771:
1582:Congenital afibrinogenemia
1486:Glanzmann's thrombasthenia
964:Retroperitoneal hemorrhage
599:"Hematoma, toenail, gross"
522:
353:Intramuscular hematoma at
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1698:Gastrointestinal bleeding
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1500:Hermansky–Pudlak syndrome
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1269:Antiphospholipid syndrome
1250:Essential thrombocythemia
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1668:Subconjunctival bleeding
1474:Bernard–Soulier syndrome
1437:Upshaw–Schulman syndrome
1411:Thrombocytopenic purpura
1240:Sticky platelet syndrome
344:
132:Not to be confused with
1658:Intracranial hemorrhage
647:Robbins basic pathology
296:vastus lateralis muscle
262:) may be aggravated by
1572:Factor XIII deficiency
1552:Hypoprothrombinemia/II
1547:von Willebrand disease
1505:Gray platelet syndrome
517:Rectus sheath hematoma
380:
369:
361:
299:
1567:Factor XII deficiency
1557:Factor VII deficiency
1375:Renal vein thrombosis
1071:Occupational injuries
627:. Emedicinehealth.com
491:Perichondral hematoma
455:Subarachnoid hematoma
375:
367:
352:
293:
1323:Deep vein thrombosis
1218:Protein S deficiency
1208:Protein C deficiency
1076:Traumatic amputation
798:at Wikimedia Commons
603:library.med.utah.edu
54:improve this article
1562:Factor X deficiency
1451:May–Hegglin anomaly
1228:Prothrombin G20210A
1688:Pulmonary hematoma
1595:Signs and symptoms
1370:Pulmonary embolism
1175:Bleeding diathesis
1039:Penetrating trauma
959:Grey Turner's sign
949:Subungual hematoma
511:Subungual hematoma
467:subarachnoid space
402:Subgaleal hematoma
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370:
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286:Signs and symptoms
241:connective tissues
185:Emergency medicine
1742:
1741:
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1577:Dysfibrinogenemia
1461:Platelet function
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1382:
1262:Purpura fulminans
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794:Media related to
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560:"blood" and -ωμα
501:Perianal hematoma
442:Subdural hematoma
429:Epidural hematoma
406:galea aponeurosis
357:as a result of a
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143:Medical condition
130:
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16:(Redirected from
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1403:Thrombocytopenia
1399:
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1348:Lowenberg's sign
1198:Clotting factors
1188:
1187:
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1107:Abdominal trauma
1015:Ballistic trauma
902:Friction blister
897:Fracture blister
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270:is given via an
216:. A hematoma is
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1755:Gross pathology
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1683:Hemopericardium
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1517:Clotting factor
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1379:
1328:Bancroft's sign
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1302:Virchow's triad
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1223:Factor V Leiden
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907:Sucking blister
887:Delayed blister
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481:Breast hematoma
459:arachnoid mater
450:arachnoid mater
415:Cephalohematoma
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204:is a localized
202:blood suffusion
196:, also spelled
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1708:Hemoperitoneum
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1420:Evans syndrome
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1353:Peabody's sign
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1245:Thrombocytosis
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716:Classification
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708:External links
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457:– between the
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431:– between the
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417:– between the
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404:– between the
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340:Classification
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280:subcutaneously
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1718:Hematosalpinx
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1359:
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1344:
1343:Louvel's sign
1341:
1339:
1338:Lisker's sign
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1320:
1318:
1314:
1308:
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1287:Thrombophilia
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1151:
1148:Disorders of
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1061:Chemical burn
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1032:/superficial/
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1021:
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1016:
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960:
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954:Cullen's sign
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937:
935:
934:Battle's sign
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923:
922:
920:
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914:
908:
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903:
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892:Edema blister
890:
888:
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883:
880:
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877:Blood blister
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656:9780323353175
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398:Skull/brain:
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393:muscle tissue
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359:sports injury
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321:
320:articulations
318:Hematomas on
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277:
276:intravenously
273:
272:intramuscular
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264:anticoagulant
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71: –
70:
66:
65:Find sources:
59:
55:
49:
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43:This article
41:
37:
32:
31:
19:
1728:Hemarthrosis
1611:
1492:
1480:
1468:
1358:Pratt's sign
1170:coagulopathy
1102:Chest trauma
1048:Aerosol burn
1030:Blunt trauma
939:Raccoon eyes
924:
882:Coma blister
769:
758:
743:
728:
695:
687:
646:
640:
629:. Retrieved
619:
607:. Retrieved
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593:
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551:
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304:subcutaneous
301:
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197:
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64:
52:Please help
47:verification
44:
1481:aggregation
1363:Rose's sign
1333:Homans sign
1165:Coagulation
1097:Head injury
1092:Hand injury
609:January 18,
214:capillaries
208:outside of
154:Other names
1713:Hematocele
1678:Hemothorax
1653:Hemoptysis
1525:Hemophilia
1297:Thrombosis
1020:Stab wound
929:Ecchymosis
771:DiseasesDB
692:"hematoma"
631:2013-04-11
585:References
541:Ecchymosis
473:Othematoma
446:dura mater
437:dura mater
419:periosteum
410:periosteum
334:hemangioma
260:hemorrhage
235:and other
226:ecchymosis
138:Hemangioma
134:Haematomma
110:April 2012
80:newspapers
69:"Hematoma"
1703:Hemobilia
1648:Epistaxis
1235:Platelets
1085:By region
1066:Frostbite
1057:Corrosion
944:Black eye
845:Abrasions
796:Hematomas
673:cite book
665:960844656
548:Etymology
529:Petechiae
463:pia mater
222:coagulate
198:haematoma
180:Specialty
172:Contusion
157:haematoma
18:Haematoma
1749:Category
1694:abdomen
1617:Petechia
1612:Hematoma
1602:Bleeding
1469:adhesion
1395:By cause
1388:Bleeding
1292:Thrombus
1191:By cause
1184:Clotting
1154:clotting
1150:bleeding
1025:Splinter
925:Hematoma
869:Blisters
857:Avulsion
852:Abrasion
838:injuries
832:General
568:See also
355:buttocks
324:fracture
206:bleeding
194:hematoma
149:Hematoma
1663:Hyphema
1638:By site
1622:Purpura
1316:By site
917:Bruises
765:D006406
535:Purpura
523:Degrees
313:Gravity
268:heparin
94:scholar
1724:joint
1674:torso
1607:Bruise
1530:A/VIII
1034:closed
1008:Other:
994:Spider
989:Insect
984:Animal
976:Biting
834:wounds
754:729.92
739:M79.81
663:
653:
605:. 2013
513:(nail)
485:breast
378:sprain
253:muscle
249:joints
237:organs
218:benign
96:
89:
82:
75:
67:
1644:head
1279:Clots
999:Snake
579:Welts
558:haima
556:αἷμα
554:Greek
465:(the
433:skull
423:skull
345:Types
200:, or
101:JSTOR
87:books
1540:C/XI
1535:B/IX
1152:and
1053:Burn
1043:open
836:and
776:5487
760:MeSH
749:9-CM
679:link
661:OCLC
651:ISBN
611:2013
562:-oma
505:anus
461:and
448:and
435:and
421:and
408:and
386:skin
251:and
245:bone
233:skin
73:news
1432:TTP
1415:ITP
1257:DIC
745:ICD
730:ICD
495:ear
278:or
136:or
56:by
1751::
1427:TM
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734:10
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