Patterns of rash associated with infection

  • Macular or maculo-papular
  • Measles*
  • Rubella
  • Enteroviral infections
  • Herpesvirus type 6 infections
  • Infectious mononucleosis
  • Toxoplasmosis
  • Cytomegalovirus infections
  • HIV seroconversion illness
  • Typhoid and paratyphoid fevers
  • Rickettsial infections
  • Dengue fever
  • Secondary syphilis
  • Drug rashes
  • Haemorrhagic
  • Meningococcal infection*
  • Viral haemorrhagic fevers
  • Leptospirosis
  • Septicaemia with disseminated intravascular coagulation
  • Rickettsial infections
  • Trypanosomiasis
  • Urticarial
  • Toxocariasis
  • Hydatidosis
  • Fascioliasis
  • Strongyloidiasis
  • Schistosomiasis
  • Vesicular
  • Chickenpox*
  • Shingles
  • Herpes simplex infections
  • Hand, foot and mouth disease
  • Herpangina (mouth)
  • Poxviruses (monkeypox)
  • Nodular
  • Erythema nodosum (primary TB and leprosy)
  • Erythematous
  • Scarlet fever*
  • Toxic shock syndrome
  • Lyme disease
  • Drug rashes
  • Dengue fever
  • Chancres (ulcerating nodules)
  • Trypanosomiasis
  • Typhus (tick and mite)
  • Anthrax
  • Rat-bite fever
Rashes are common clinical features of many systemic infectious diseases. They can be classified as maculopapular (discrete or sometimes confluent red spots which can be elevated), nodular, erythematous (a diffuse red eruption which blanches on finger pressure), haemorrhagic, vesicular (associated with blister formation), urticarial or as chancres. Certain infections are associated with specific skin lesions which are characteristic of that infection.The examples of infections associated with the various types of rashes.The common types of eruption (measles, scarlet fever, chickenpox, meningococcaemia). Drugs, including antibiotics, are a common cause of rashes during infection, particularly the β-lactams.
Concepts of infection
Major manifestations of infection
Principles of management of infection
Diseases due to viruses
DNA viruses
Diseases due to chlamydiae
Diseases due to rickettsiae
Diseases due to bacteria
  • Streptococcal infections
  • Staphylococcal infections
  • Corynebacterial infections
  • Bacillus infections
  • Bordetella infections
  • Salmonella infections
  • Food poisoning
  • Dysentery
  • Other true bacterial infections
  • Mycobacterial infections
Diseases due to spirochaetes
  • Leptospira infections
  • Borrelia infections
  • Treponema infections
Diseases due to fungi (mycoses)
  • Cutaneous fungal infections
  • Subcutaneous fungal infections
  • Systemic fungal infections
Diseases due to protozoa
Diseases due to helminths
  • Trematode (fluke) infections
  • Cestode (tapeworm) infections
  • Nematode (roundworm) infections
  • Zoonotic helminth infections
Diseases due to arthropods
Sexually transmitted diseases
  • Sexually transmitted bacterial diseases
  • Sexually transmitted viral diseases
  • Miscellaneous conditions