Genetics determines how many freckles you have. It is located in the gene that was inherited from your parents and is actually linked to the hue of your hair and skin.
Your skin’s ability to create melanin is controlled by the MC1R gene. In reality, melanin comes in two different colors: a reddish-yellow pheomelanin and a darker brown eumelanin. You create more pheomelanin if your MC1R gene is dormant. These folks have fairer skin tones and more pronounced freckles.
A person’s skin becomes darker with freckles as a form of UV protection. However, these freckles are not a substitute for real sunscreen.
Actually, having a lot of freckles may indicate that your skin is extremely susceptible to sunlight. You are more likely to develop skin cancer if your freckles change according to how much time you spend outside. If it describes you, you should regularly use SPF 30 sunscreen to keep your skin safe. You should use sunscreen before leaving the house, even if it’s cloudy outside.
Some people might be concerned that since freckles are affected by the sun, they could one day develop into cancer. That is not true. Cancer cannot ever develop from freckles.
Melanoma will manifest itself on your body as a mole if you do get it. It will seem different from other moles on the body, have irregular, rough edges, appear brown, and be larger than the average mole.