Symptom: Dark skin


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Dark skin: Darkening of the skin as a symptom
Introduction: There are various types of skin darkening. One type is hyperpigmentation that occurs when certain skin cells release more pigment (dark color). Darkening of the skin due to "blueness" is called cyanosis (see also blue skin) or purple skin. Darkening may sometimes occur from redness or bruising. Other types of skin darkening can result from sun exposure, certain dietary items, and certain chemicals; see also skin color changes for particular colors such as redness, blueness and other skin color changes. Skin darkening, color changes, or hyperpigmentation can be the symptom of some severe diseases (e.g. Addison's, scleroderma), and any such symptoms require prompt professional medical investigation.
Detailed cause information for symptom: Dark skin:
  • Possible causes of symptom: Dark skin (35 conditions)
  • Medical conditions causing symptom: Dark skin (21 conditions)
  • Medical conditions causing complication: Dark skin (1 conditions)

    Medical articles on symptoms: These general medical articles may be of interest:

    Types of Dark skin: hyperpigmentation (9), purple skin (6)
    Symptoms related to Dark skin: skin color changes (129), hyperpigmentation (9), whitening (8), hypopigmentation (4), blueness (33), cyanosis (33), purple skin (6), orange skin (3), yellow skin (24), sun sensitivity (5), hyperpigmentation (9), skin color changes (129), purple skin (6)
    Dark skin type of: Skin color changes (129)
    Symptoms: symptom center, symptom groups, symptom descriptions

    Possible causes of symptom: Dark skin: The following medical conditions are some of the possible causes of Dark skin as a symptom. There are likely to be other possible causes, so ask your doctor about your symptoms.

    Conditions listing symptoms: Dark skin: The following list of conditions have 'Dark skin' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

    A

  • Actinic keratosis ... red-brown skin
  • Addison's Disease ... hyperpigmentation

    B

  • Birthmark ... birthmark, skin marking

    C

  • Classic childhood ALD ... melanoderma (increased skin pigmentation)

    D

  • Dermatomyositis ... bluish-purple skin rash

    E

  • Eczema ... hyperpigmented eyelids
  • Erythromelalgia ... red or purple skin patches

    F

  • Frostbite ... greying of affected area, blackening skin

    G

  • Gangrene ... local blackening, local brown discoloration

    H

  • Hemochromatosis ... bronze skin

    I

  • Immune Thrombocytopenic Purpura ... purplish skin areas

    J

  • Jaundice ... bronze skin

    K

  • Kaposi's Sarcoma ... purple spots
  • Keratosis ... red-brown skin

    M

  • McCune-Albright Syndrome ... increased pigment, "cafe-au-lait" spots
  • Moles ... pigmented areas of skin

    N

  • Necrotizing fasciitis ... violet skin
  • Nevus ... birthmark

    P

  • Polycystic ovary syndrome ... thickened darkened skin patches

    S

  • Sarcoidosis ... purple skin patches
  • Scleroderma ... hyperpigmentation
    Conditions listing complications: Dark skin: The following list of conditions have 'Dark skin' or similar listed as a complication in our database. The distinction between a symptom and complication is not always clear, and conditions mentioning this symptom as a complication may also be relevant. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

    E

  • Eczema ... hyperpigmented eyelids


    Last revised: Nov 12, 2003

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