Freckles also known as ephelids are an indication that you have had previous sun exposure. Most freckles are not dangerous they are just a sign of sun damage. The freckles on your skin are created when your skin produces more melanin pigment in reaction to the sunâ€™s UV (ultraviolet) rays. It is way for your skin to protect you from more sun damage. In most cases your freckles will fade in the winter and darken in the summer due t more sunlight.
People with fair skin will tend to have more freckles and sunburn more easily, while people with dark or olive skin tones will suntan easier and have less freckles. In most situations freckles start to show up in your childhood years on areas that are exposed to the most sunlight. This would be the arms, face, legs and chest. The number of freckles will increase of your lifetime based on the amount of sun exposure you receive.
If you see new freckles appearing, this could be triggered by a visit to the tanning salon or a recent sunburn. These freckles are known as sunburn freckles and have been associated with melanoma skin cancer. This type of freckle is usually found on the shoulders and chest. They appear darker and larger than the light colored freckles you have seen when you were younger.
If you notice any changes in your freckles or moles it is recommend too visit your primary physician or dermatologist. It can be a sign of a precancerous condition or skin cancer and may need to be removed.