Condition characterized by chronic inflammation of the sebaceous glands from retained secretions & Propionibacterium acnes (P.acnes) bacteria.
Congential leukoderma or absence of melanin pigment of the body, including the hair, skin & eyes.
Condition characterized by a deficiency or lack of prespiration, due to the failure of the sweat glands. Can also be a result of fever or certain skin diseases.
Basal Cell Carcinoma
Most common & least severe type of skin cancer; often characterized by light or pearly nodules. Can be easily removed.
Condition characterized by foul-smelling prespiration caused by bacteria or yeast, usually noticable in the underarms or on the feet.
Condition characterized by increased pigmentation on the skin in spots that are not elevated, such as a Liver spots.
Comedo (plural: comedones)
Non-inflamed hair follicle filled (buildup) with cells, keratin, sebum & other debris inside follicles. Worm like mass of hardened sebum in a hair follicle.
Dead cells that form over a wound or blemish while it is healing; an accumulation of sebum & pus, sometimes mixed with epidermal material, such as a scab.
Closed, abnormaly developed sac containing fluid, semifluid or morbid (infection) matter, above or below the skin.
Condition characterized by an eruptive skin infection caused by contact with irritating substances such as chemicals or tints. Commonly known as contact dermatitis.
Condition characterized by inflammatory painful itching disease of the skin, acute or chronic in nature, presenting many forms of dry or moist lesions.
Condition characterized by excessive sweating (perspiration) caused by heat, genetics, general body heat or general body weakness.
Thick scar resulting from excessive growth of fibrous tissue (collagen). Genetically predisposed.
Acquired, superficial thickened patch of epidermis, caused by pressure or friction on the hands & feet, such as a callus or a corn
Lentigines (singular: lentigo)
Technical term for freckles. Small yellow to brown colored spots on skin exposed to sunlight & air.
Mark on the skin, that may indicate an abnormality, injury or damage that changes the structure of tissues & organs.
Condition characterized by light abnormal patches; caused by a burn or congenital disease that destroys the pigment-producing cells. Vitiligo & albinism are both this.
Condition characterized by black or dark brown patches on the skin that may appear uneven in texture, jagged or raised. Most serious form of skin cancer.
Benign, keratin-filled cysts that can appear just under the epidermis & have no visible opening. Small whitish, pearl like masses in the epidermis due to the retention of sebum; such as whiteheads.
Acute inflammatory disorder of the sweat glands, characterized by the eruption of small red vesicles & accompanied by burning, itching skin from excess heat exposure, such as prickly heat.
Small, brownish spot or blemish on the skin, ranging in color from pale to tan to brown or bluish black.
Small or large malformation of the skin due to abnormal pigmentation or dilated capillaries; such as birth mark.
Small circumscribed elevation on the skin that contains no fluid but may develop pus like into a pustule.
Condition characterized by red patches, covered with silvery white scales usually found on the scalp, elbows, knees, chest & lower back, but rarely on the face. Is not contagious, but can spread by irritating the affected area.
An inflamed papule with a white or yellow center, containing pus, a fluid consisting of white blood cells, bacteria & other debris produced from an infection, such as an inflamed pimple containing pus.
Condition characterized by chronic inflammation of the skin appearing primarily on the cheeks & nose, characterized by redness, dilation of the blood vessels & formation of papules & pustules. Vasodilation of the blood vessels makes it worse.
Any thin plate of epidermal flakes, dry or oily, such as abnormal or excessive dandruff or psoriasis.
Scar or Cicatrix
Light-colored, slightly raised mark on the skin formed after an injury or lesion of the skin has healed.
Condition characterized by an inflammation of the sebaceous glands, accompanied by inflammation, dry or oily scaling or crusting, &/or itchiness, such as eczema. Mainly affects oily areas.
Squamous Cell Carcinoma
Condition characterized by red, pink scaly papules or nodules. Sometimes open sores or crusty areas that do not heal & may bleed easily, found in all parts of the body. Type of skin cancer more serious than basal cell carcinoma;
Abnormal brown or wine-colored skin discoloration with a circular & irregular shape, such as a port wine stain (is a vascular type).
A large nodule; a swelling of abnormal cell mass resulting from excessive multiplication of cells, varying in size, shape & color.
Open lesion on the skin or mucous membrane of the body, accompanied by pus & loss of skin depth.
Small blister or sac containing clear fluid, lying within or just beneath the epidermis, such as poison ivy/oak.
Condition characterized by milky white spots (leukoderma) or areas on the skin from a lack of pigment cells. An acquired condition (hereditary) & may be related to thyroid condition.
An itchy swollen lesion that lasts only a few hours; caused by a blow, the bite of an insect, urticaria, the sting of a nettle or skin allergy, such as hives & mosquito bites.
Condition characterized by dry, scaly skin due to a deficiency or absence of sebum, can be due to aging, body disorders, alkalies of harsh soaps or cold weather.
Condition characterized by an abnormal increase of secretion from the sebaceous glands. Severe oiliness of the skin.
Reaction due to extreme sensitivity to certain foods, chemicals or other normally harmless substances.
Any condition or disease that makes an indicated treatment or medication inadvisable.
Abnormal condition of all or part of the body, organ or mind that makes it incapable of carrying on normal function.
Appearance of a disease that simultaneously attacks a large number of persons living in a particular locality.
Condition of some part of the body as a protective response to injury, irritation, or infection, characterized by redness, heat, pain & swelling.
Illness resulting from conditions associated with employment, such as coming in contact with chemicals or tints .
Disease produced by disease- causing bacteria, such as staphylococcus & streptococcus (pus forming bacteria) or viruses.
Sciences that investigates modifications of the functions & changes in structure caused by disease.
Disease that effects the body generally, often due to under- or overfunctioning of the internal glands.
Contagious disease commonly acquired by contact with an infected person during sexual intercourse, characterized by sores & rashes on the skin.
An allergic reaction by the body's histamine productions (caused by the exposure to allergens). Medical term for hive.
Characterized by flat, non-palpable changes in skin color - such as macules - or by elevations formed by fluid in a cavity, such as vesicles or pustules. Are in the early stages of development or change.
A disorder where a person purposely scrapes off acne lesions, causing scarring & discoloration.
When the sebum of the comedo is exposed to the environment, it oxidizes & turns black, such as blackheads.
When the follicle is closed & not exposed to the environment, comedones are a white or cream color, such as whiteheads.
Subcutaneous abscess filled with pus usually involving more than one hair follicle, such as a group of boils.
Benign lesions frequently seen in the oilier areas of the face. Over-growths of the sebaceous glands appear similar to open comedones - doughnut shaped.
Vascular lesions - capillaries that have been damaged & are now larger or distended blood vessels, such as in Couperose skin.
Hereditary condition or inflamed rash characterized by dry sensitive skin & irritated, worsens in winter mostly found on neck face & folds of body, can be caused by allergies.
Inflammatory skin condition caused by contact with a substance or chemical, such as Dermatitis Venenata.
Hair grows under the surface, instead of growing up & out of the follicle, causing a bacterial infection.
An overproduction of pigment - sun exposure, acne medications & post inflammatory hyperpigmentation from skin damage. Overactivity of melanocytes.
Pink or flesh colored precancerous lesions that feel sharp or rough are a result of sun damage and should be checked by a dermatologist.
Hereditary condition characterized by dead skin cells that do not shed from the follicles as they do on normal skin. Excessive sebum production can overtax the sebaceous follicles & cause further cell buildup. Sebum mixed with cells in the follicles become comedones.
Condition characterized by inflammation of membrane that lines the eyelids - very contagious, such as Pinkeye.
A painful skin condition from chickenpox, characterized by group of blisters that form a rash, such as Shingles.
Bacteria infection of the skin that often occurs in children; characterized by clusters of small blisters or crusty lesions filled with bacteria produces honey yellow-crusted lesions. Extremely contagious.
Similar to open comedones, are mainly solidified impaction of oil without the cell matter. Also block the follicle & can cause an acne breakout. Often found in the nose.
When follicles are blocked with sebum & dead skin buildup, oxygen cannot reach the bottom of the follicle.
Grade 1 Acne
Minor breakouts, some open comedones & closed comedones with an occasional papule or pustule.
Grade 2 Acne
Moderate acne with more closed comedones, more open comedones, with a few papules & pustules.
Grade 3 Acne
Moderately severe acne with many comedones red & inflamed papules & pustules with occasional cysts.
Grade 4 Acne
Most severe acne with numerous cysts with comedones, papules, pustules, & inflammation are present. Scar formation from tissue damage is common. Nodular cystic acne.
Caused by yeast infection; a type of fungus characterized by red, well-demarcated patches surrounded by white film found in folds.