For the tongue condition also sometimes called "erythema migrans", see Geographic tongue.
Not to be confused with erythema multiforme, despite that both often involve target lesions (but from different causes).
Erythema migrans or erythema chronicum migrans is an expanding rash often seen in the early stage of Lyme disease, and can also (but less commonly) be caused by southern tick-associated rash illness (STARI).[1][2] It can appear anywhere from one day to one month after a tick bite. This rash does not represent an allergic reaction to the bite, but rather an actual skin infection of one of the Lyme bacteria species from the genus Borrelia. The rash's name comes from Neo-Latin for "migrating redness."
In Europe, 80% of Lyme rashes look like a "bull's eye," but in only 20% of cases in the United States. (20 percent of Lyme infections show no rash.)[3][4][5]
Erythema migrans ("migrating redness") and may have no definite pattern, as in this Lyme rash on a woman's neck.[6] Rashes from non-Lyme causes may look similar.[3][7]
^"Lone star tick a concern, but not for Lyme disease". U.S. Centers for Disease Control and Prevention (CDC). Retrieved 6 October 2017. Page last reviewed: October 22, 2015
^Naktin, Jaan Peter (2017). "Diagnostic Utility of Erythema Migrans". Clinical Infectious Diseases. 65 (12): 2156–2157. doi:10.1093/cid/cix544. ISSN 1058-4838. PMID 28605419.
^ abWright WF, Riedel DJ, Talwani R, Gilliam BL (June 2012). "Diagnosis and management of Lyme disease". Am Fam Physician. 85 (11): 1086–93. PMID 22962880. Archived from the original on 27 September 2013.
^Tibbles CD, Edlow JA (20 June 2007). "Does This Patient Have Erythema Migrans?". JAMA. 297 (23): 2617–27. doi:10.1001/jama.297.23.2617. PMID 17579230.
^"Lyme disease rashes and look-alikes". Lyme Disease. Centers for Disease Control and Prevention. 21 December 2018. Retrieved 18 April 2019.
^Boyce, RM; Pretsch, P; Tyrlik, K; Schulz, A; Giandomenico, DA; Barbarin, AM; Williams, C (March 2024). "Delayed Diagnosis of Locally Acquired Lyme Disease, Central North Carolina, USA". Emerging Infectious Diseases. 30 (3): 564–567. doi:10.3201/eid3003.231302. PMC 10902532. PMID 38407256.
^Trayes, KP; Savage, K; Studdiford, JS (1 September 2018). "Annular Lesions: Diagnosis and Treatment". American Family Physician. 98 (5): 283–291. PMID 30216021.
Erythemamigrans or erythema chronicum migrans is an expanding rash often seen in the early stage of Lyme disease, and can also (but less commonly) be...
Examples of erythema not associated with pathology include nervous blushes. Erythema ab igne Erythema chronicum migransErythema induratum Erythema infectiosum...
The most common sign of infection is an expanding red rash, known as erythemamigrans (EM), which appears at the site of the tick bite about a week afterwards...
may be located using medical imaging. Necrolytic migratory erythema and erythemamigrans are some of many other skin conditions that may appear similar...
original on April 2, 2019. Retrieved April 18, 2019. "Lyme disease: erythemamigrans". Lyme disease NICE guideline [NG95]. National Institute for Health...
of Lyme disease, the target lesion is synonymous with erythemamigrans (erythema chronicum migrans), although not everyone who gets Lyme disease will have...
the skin) occurs with an erythema nodosum lesion, causing the lesion to look like a contusion (bruise) Erythema nodosum migrans (also known as subacute...
Erythema multiforme (EM) is a skin condition that appears with red patches evolving into target lesions, typically on both hands. It is a type of erythema...
include erythemamigrans and flu-like symptoms. Neuroborreliosis is often preceded by the typical symptoms of Lyme disease, which include erythemamigrans and...
specifically indicated to treat Lyme disease for patients presenting with erythemamigrans. As for the optimal duation of treatment of this disease, guidelines...
particularly if there is also a 'bullseye' or target-shaped skin rash (erythemamigrans). The tick's paralysing toxin has been estimated to affect as many...
education. They've noted specific examples such as skin infections like erythemamigrans being depicted on almost exclusively white skin. As an indicative first...
disease frequently presents with a pathognomonic "bull's eye" rash, erythemamigrans, as well as fever, malaise, and arthralgias. Roughly 15% of untreated...
they have occasionally been observed in tissue samples taken from erythemamigrans rashes. In some in vitro experiments round bodies seemed to be formed...
Erythema ab igne (Latin for 'redness from fire') EAI, also known as hot water bottle rash, is a skin condition caused by long-term exposure to heat (infrared...
recommendations in Lyme disease: the clinical management of known tick bites, erythemamigrans rashes and persistent disease". Expert Review of Anti-infective Therapy...
slovaca is found in another 2%, and 1% are infected with both species. Erythemamigrans or rash was observed at all combinations of seroreactivity, with symptoms...
Necrolytic migratory erythema is a red, blistering rash that spreads across the skin. It particularly affects the skin around the mouth and distal extremities;...
characterized by debilitating polyarthritis, neurologic symptoms, and erythemamigrans Lymphoma Osteomalacia/rickets in adolescents Osteopetrosis Osteosarcoma...
transaminases, thrombocytopenia, and leukopenia. Cases involving an erythemamigrans rash, which is a classic feature of Lyme disease, have been reported...
rash described by Afzelius was later named erythemamigrans. Research in Europe had found that erythemamigrans and acrodermatitis chronica atrophicans,...
Annular erythema of infancy (AEI) consists of self-limited eruptions of erythematous, annular to polycyclic patches and plaques. It is an idiopathic figurate...
![In Europe, 80% of Lyme rashes look like a "bull's eye," but in only 20% of cases in the United States. (20 percent of Lyme infections show no rash.)[3][4][5]](//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Bullseye_Lyme_Disease_Rash.jpg/180px-Bullseye_Lyme_Disease_Rash.jpg)
In Europe, 80% of Lyme rashes look like a "bull's eye," but in only 20% of cases in the United States. (20 percent of Lyme infections show no rash.)[3][4][5]![Erythema migrans ("migrating redness") and may have no definite pattern, as in this Lyme rash on a woman's neck.[6] Rashes from non-Lyme causes may look similar.[3][7]](//upload.wikimedia.org/wikipedia/commons/thumb/0/03/Solid_erythema_migrans_rash_on_the_neck_of_a_woman_with_Lyme_disease.jpg/180px-Solid_erythema_migrans_rash_on_the_neck_of_a_woman_with_Lyme_disease.jpg)
Erythema migrans ("migrating redness") and may have no definite pattern, as in this Lyme rash on a woman's neck.[6] Rashes from non-Lyme causes may look similar.[3][7]
Global Information![In Europe, 80% of Lyme rashes look like a "bull's eye," but in only 20% of cases in the United States. (20 percent of Lyme infections show no rash.)[3][4][5]](http://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Bullseye_Lyme_Disease_Rash.jpg/180px-Bullseye_Lyme_Disease_Rash.jpg)
![Erythema migrans ("migrating redness") and may have no definite pattern, as in this Lyme rash on a woman's neck.[6] Rashes from non-Lyme causes may look similar.[3][7]](http://upload.wikimedia.org/wikipedia/commons/thumb/0/03/Solid_erythema_migrans_rash_on_the_neck_of_a_woman_with_Lyme_disease.jpg/180px-Solid_erythema_migrans_rash_on_the_neck_of_a_woman_with_Lyme_disease.jpg)