Not Medical Advice: No. Freckles are caused by the sun. Those people who have more freckles than others is caused by genetics.
We all have pigment-producing cells in our skin called melanocytes. These melanocytes produce melanin pigment and feed it to keratinocytes, the normal skin cells that form the outer barrier of our skin. This barrier protects us from the insults of nature, and importantly, from the sun.
This pigment prevents us from being damaged by the sun’s powerful rays. When our melanocytes become damaged by the sun, we produce freckles, which are simply abnormal collections of melanin pigment in the skin.
Someone who experiences lots of freckles is more likely to have a dominant melanocortin-1 receptor (MC1R) gene which causes your melatonin to cluster more as freckles rather than be evenly distributed across your body.
Although MC1R is a key gene in normal human pigmentation, researchers believe that the effects of other genes also contribute to a person's hair (turns red) and skin coloring.
Having freckles mean no harm to your skin and it is not an indication you have cancer. However, skin cancer can masquerade as freckles which calls the need for dermatological analysis in case you notice unusual skin spots or growths. Here are some tips for reducing freckles shared by Consumerhealthdigest.com.