The spots on the skin are one of the main problems of consultation and skin beauty centers, some are the result of sustained exposure to sunlight but other causes are as diverse as hormonal disorders, use of medications or heredity.
Overall, the word stain, from Latin macula, refers to that part of something with a different general or dominant color in it; definition applied to the skin spots include moles, freckles, nevi, hemangiomas, keratoses, bruising, vitiligo, solar lentigines, chloasma and postinflammatory hyperpigmentation.
We targeted those who have their origins in exposure to ultraviolet radiation, ie, solar lentigines, chloasma and the inflammatory pigmentation.
Known solar as senile lentigo spots or senile lentigo, is a flat spot of light yellow, light brown or dark brown, size ranges from 1 to 3 cm with irregular contours and well-defined, usually multiple, grow slowly and tend to coalesce.
Appears in older people, although less because every time they appear in younger people, is caused by sun exposure over many years, usually near the dorsal skin of the hands, forearms, neck and face areas being more unprotected. After cessation of exposure to sunlight can be clarified slightly, however some may persist indefinitely.
There are other two types, simple lentigo that appears in childhood and is unrelated to sun exposure, and, lentigo considered a form of malignant melanoma.
Chloasma
In popular language is called mask of pregnancy because it is a common skin condition during pregnancy, however the chloasma may appear with the use of oral contraceptives such as injections.
Although it is women who suffer from the appearance of melasma in ninety percent of cases, affecting the forehead, cheeks and upper lip, also appears in men’s skin as a result of antibiotic use perfumes or cosmetics.
This form of pigmentation is due to a phototoxic reaction, due to absorption of ultraviolet radiation by the chemical in the cologne or perfume. In these cases, the pigmentation is more extensive, also observed in the lateral neck and is usually most evident on one side due to sun exposure while driving. Chloasma also seen in healthy people with no no cause, assuming that is the result of discrete hormonal changes.
In all cases, the sun is also involved, because if in the winter months seem to have disappeared, the spots become darker and are again visible during the months of good weather.
Postinflammatory hyperpigmentation
This postinflammatory hyperpigmentation type of stain is common in dark skinned people because they have larger melanosomes and with more melanin than white skin, a scar appearing on product from a back injury like a cut or scrape, following surgery, or after certain skin disorders like acne. Pigmentation is usually greater when the area is exposed to sunlight.
Despite that may have the same causes should not be confused with keloids, which consist of an overgrowth of scar tissue at the site of skin injury.
