Freckles are thought to develop as a result of a combination of genetic tendency (inheritance) and sun exposure. Two people receiving the same sun exposure may not have an equal chance of developing freckles. Natural sunlight and artificial suntanning lights emit ultraviolet (UV) rays. After exposure to ultraviolet rays, the outer layer of the skin (the epidermis) thickens and the pigment-producing cells (the melanocytes) produce the pigment melanin at an increased rate. (This production of melanin may in fact give some protection against future sun exposure.)
Of course, people differ a great deal in their reaction to sunlight. To take an extreme example, there is no pigmentation in the skin of an albino because of a defect in melanin metabolism. On the other hand, people with dark complexions are relatively less sensitive to sun exposure than fair-skinned people. However, people with dark skin are not entirely resistant to the effects of the sun, and they, too, can become sunburned with prolonged exposure. People with blond or red hair, light-colored eyes, and fair skin are especially susceptible to the damaging effect of UV rays.Irrespective of skin color, freckling is caused by the uneven distribution of the melanin pigment in the skin. A freckle is essentially nothing more than an unusually heavy deposit of melanin at one spot in the skin.How important is heredity with freckles?
Comment on this Share Your Story Heredity and skin type are very important factors for the tendency to develop freckles. Freckles tend to be inherited genetically and are most common in individuals with fair skin and/or with blond or red hair.Research in twin siblings, including pairs of identical twins and pairs of fraternal (nonidentical) twins, have found a striking similarity in the total number of freckles found on each pair of identical twins. Such similarities were considerably less common in fraternal twins. These studies strongly suggest that the occurrence of freckles is influenced by genetic factors. In fact, the variations in freckle counts appear to be due largely to heredity. Ongoing research in a rare disease called xeroderma pigmentosum has also confirmed the genetic tendency of freckles. Excessive freckles in dark-haired individuals are quite common in this disease.Who Can Benefit From Laser Tattoo Removal?
Because each tattoo is unique, removal techniques must be tailored to suit each individual case. In the past, tattoos could be removed by a wide variety of methods but, in many cases, the scars were more unsightly than the tattoo itself.Patients with previously treated tattoos may also be candidates for laser therapy. Tattoos that have not been effectively removed by other treatments or through home remedies may respond well to laser therapy providing the prior treatments did not result in excessive scarring.How Do I Find a Reputable Doctor to Do Laser Tattoo Removal?
To have a tattoo removed, you want to make sure you find a reputable dermatologist or cosmetic surgery center to ensure proper treatment and care. If possible, you should obtain a recommendation from your family doctor for a dermatologist or skin surgery center that specializes in tattoo removal.