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Pallor

 

 
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Pallor
 
 
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Pallor (also called pastiness or wanness) is a reduced amount of oxyhemoglobin
Hemoglobin

Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of vertebrates, and the tissues of some invertebrates....
 in skin
Skin

The skin is the outer covering of the body, also known as the epidermis. It is the largest organ of the integumentary system made up of multiple layers of epithelial biological tissue, and guards the underlying muscles, bones, ligaments and organ s....
 or mucous membrane
Mucous membrane

The mucous membranes are linings of mostly germ layer origin, covered in epithelium, which are involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organ ....
, a pale color which can be caused by illness, emotional shock or stress, avoiding excessive exposure to sunlight, anemia
Anemia

Anemia or an?mia/anaemia is defined as a qualitative or quantitative deficiency of hemoglobin, a protein found inside red blood cells ....
 or genetics. It is more evident on the face
Face

The term face refers to the central sense organ complex, for those animals that have one, normally on the ventral surface of the head and can depending on the definition in the human case, include the hair, forehead, eyebrow, eyes, nose, ears, cheeks, mouth, lips, philtrum, tooth, skin, and chin....
 and palms. It can develop suddenly or gradually, depending on the cause.

Pallor is not usually clinically significant unless it is accompanied by a general pallor (pale lip
Lip

Lips are a visible body part at the mouth of humans and many animals. Lips are soft, movable, and serve as the opening for food intake, as an erogenous organ used in kissing and other acts of intimacy, as a tactile sensory organ, and in the articulation of speech....
s, tongue
Tongue

The tongue is skeletal muscle on the floor of the mouth that manipulates food for chewing . It is the primary organ of taste. Much of the upper surface of the tongue is covered in papillae and taste buds....
, palm
Hand

The hands are the two intricate, prehensile, multi-fingered body parts normally located at the end of each arm of a human or other primate. They are the chief organs for physically manipulating the environment, using anywhere from the roughest motor skills to the finest , and since the fingertips contain some of the densest areas of nerve e...
s, mouth
Mouth

The mouth, buccal cavity, or oral cavity is the first portion of the alimentary canal that receives food and begins digestion by mechanically breaking up the solid food particles into smaller pieces and mixing them with saliva....
 and other regions with mucous membranes).






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Encyclopedia


Pallor (also called pastiness or wanness) is a reduced amount of oxyhemoglobin
Hemoglobin

Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of vertebrates, and the tissues of some invertebrates....
 in skin
Skin

The skin is the outer covering of the body, also known as the epidermis. It is the largest organ of the integumentary system made up of multiple layers of epithelial biological tissue, and guards the underlying muscles, bones, ligaments and organ s....
 or mucous membrane
Mucous membrane

The mucous membranes are linings of mostly germ layer origin, covered in epithelium, which are involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organ ....
, a pale color which can be caused by illness, emotional shock or stress, avoiding excessive exposure to sunlight, anemia
Anemia

Anemia or an?mia/anaemia is defined as a qualitative or quantitative deficiency of hemoglobin, a protein found inside red blood cells ....
 or genetics. It is more evident on the face
Face

The term face refers to the central sense organ complex, for those animals that have one, normally on the ventral surface of the head and can depending on the definition in the human case, include the hair, forehead, eyebrow, eyes, nose, ears, cheeks, mouth, lips, philtrum, tooth, skin, and chin....
 and palms. It can develop suddenly or gradually, depending on the cause.

Pallor is not usually clinically significant unless it is accompanied by a general pallor (pale lip
Lip

Lips are a visible body part at the mouth of humans and many animals. Lips are soft, movable, and serve as the opening for food intake, as an erogenous organ used in kissing and other acts of intimacy, as a tactile sensory organ, and in the articulation of speech....
s, tongue
Tongue

The tongue is skeletal muscle on the floor of the mouth that manipulates food for chewing . It is the primary organ of taste. Much of the upper surface of the tongue is covered in papillae and taste buds....
, palm
Hand

The hands are the two intricate, prehensile, multi-fingered body parts normally located at the end of each arm of a human or other primate. They are the chief organs for physically manipulating the environment, using anywhere from the roughest motor skills to the finest , and since the fingertips contain some of the densest areas of nerve e...
s, mouth
Mouth

The mouth, buccal cavity, or oral cavity is the first portion of the alimentary canal that receives food and begins digestion by mechanically breaking up the solid food particles into smaller pieces and mixing them with saliva....
 and other regions with mucous membranes). It is distinguished from similar symptoms such as hypopigmentation
Hypopigmentation

Hypopigmentation is the loss of skin color. It is caused by melanocyte depletion — a decrease in the amino acid tyrosine, which is used by melanocytes to make melanin....
 (loss of skin pigment
Pigment

A pigment is a material that changes the color of light it Reflection as the result of selective color absorption. This physical process differs from fluorescence, phosphorescence, and other forms of luminescence, in which the material itself emits light....
).

Pale skin
Human skin color

Human skin color can range from almost black to nearly colorless in different homo sapiens. Skin color is determined by the amount and type of melanin, the pigment in the skin....
 is also a very light skin tone most commonly associated with people of European
European ethnic groups

The European peoples are the various nations and ethnic groups of Europe. European ethnology is the field of anthropology focusing on Europe....
 descent, particularly people of Celtic and Scandinavian descent. In addition, people who avoid sun exposure and thus avoid sun tanning
Sun tanning

Sun tanning describes a darkening of the Human skin color in a natural physiological response stimulated by exposure to ultraviolet radiation from sunlight or from artificial sources such as a tanning bed....
 also tend to have paler complexions in comparison to their peers, particularly during summer.

Possible causes

  • death
    Death

    Death is the permanent termination of the biological functions that define a life organism. It refers to both a particular event and to the condition that results thereby....
    , due to pallor mortis
    Pallor mortis

    Pallor mortis is a postmortem paleness which happens in those with light skin almost instantly because of a lack of capillary circulation throughout the body....
  • migraine attack or headache
    Migraine

    Migraine is a neurology syndrome characterized by altered bodily perceptions, headaches, and nausea. Physiologically, the migraine headache is a neurological condition more common to women than to men....
  • natural genetics
    Genetics

    Genetics , a discipline of biology, is the science of heredity and Genetic variation in living organisms. The fact that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding....
  • emotional response, due to fear
    Fear

    Fear is an emotional response to threats and danger. It is a basic survival mechanism occurring in response to a specific stimulus, such as pain or the threat of pain....
    , embarrassment
    Embarrassment

    Embarrassment is an emotional state experienced upon having a socially or professionally unacceptable act or condition witnessed by or revealed to others....
    , grief
    Grief

    Grief is a multi-faceted response to loss. Although conventionally focused on the emotional response to loss, it also has physical, cognitive, behavioral, social, and philosophical dimensions....
  • anemia
    Anemia

    Anemia or an?mia/anaemia is defined as a qualitative or quantitative deficiency of hemoglobin, a protein found inside red blood cells ....
    , due to blood loss, poor nutrition
    Nutrition

    Nutrition is the provision, to cells and organisms, of the materials necessary to support life. Many common health problems can be prevented or alleviated with good nutrition....
    , or underlying disease
  • shock, a medical emergency caused by illness or injury
  • frostbite
    Frostbite

    Frostbite is the medical condition wherein localized damage is caused to skin and other biological tissue due to extreme cold.Frostbite is most likely to happen in body parts farthest from the heart and those with large exposed areas....
  • cancer
    Cancer

    Cancer is a class of diseases in which a group of cell display uncontrolled growth , invasion , and sometimes metastasis . These three malignant properties of cancers differentiate them from benign tumors, which are self-limited, do not invade or metastasize....
  • leukemia
    Leukemia

    Leukemia is a cancer of the blood or bone marrow and is characterized by an abnormal proliferation of blood Cell , usually white blood cells ....
  • albinism
    Albinism

    Albinism is a form of hypopigmentation congenital disorder, characterized by a partial or total lack of melanin Biological pigment in the eyes, skin and hair ....
  • heart disease
    Heart disease

    Heart disease is an umbrella term for a variety for different diseases affecting the heart. As of 2007, it is the leading cause of death in the United States, England, Canada and Wales, killing one person every 34 seconds in the United States alone....
  • hypothyroidism
    Hypothyroidism

    Hypothyroidism is the disease state in humans and in animals caused by insufficient production of thyroid hormone by the thyroid gland. Cretinism is a form of hypothyroidism found in infants....
  • hypopituitarism
    Hypopituitarism

    Hypopituitarism is the decreased secretion of one or more of the eight hormones normally produced by the pituitary gland at the base of the brain....
  • scurvy
    Scurvy

    Scurvy is a disease resulting from a deficiency of vitamin C, which is required for the synthesis of collagen in humans. The chemical name for vitamin C, ascorbic acid, is derived from the Latin name of scurvy, scorbutus....
  • tuberculosis
    Tuberculosis

    Tuberculosis is a common and often deadly infectious disease caused by mycobacterium, mainly Mycobacterium tuberculosis . Tuberculosis usually attacks the lungs but can also affect the central nervous system, the lymphatic system, the circulatory system, the genitourinary system, the gastrointestinal system, bones, joints, and even the...
  • sleep deprivation
    Sleep deprivation

    Sleep deprivation is a general lack of the necessary amount of sleep. This may occur as a result of sleep disorders, active choice or deliberate inducement such as in interrogation or for torture....
  • pheochromocytoma
    Pheochromocytoma

    A phaeochromocytoma is a neuroendocrine tumor of the Adrenal medulla of the adrenal glands , or extra-adrenal chromaffin tissue that failed to involute after birth and secretes excessive amounts of catecholamines, usually epinephrine and norepinephrine....
  • Reaction to ethyl alcohol and/or other drugs such as cannabis
    Cannabis

    Cannabis is a genus of flowering plants that includes three putative species, Cannabis sativa L., Cannabis indica Lam., and Cannabis ruderalis Janisch....