What's the point of having a red birthmark on your right arm?

The reason for the formation of red birthmarks on the skin may be caused by dominant genes, which are inherited and passed down before the next generation. Birthmark is highly hereditary, but it can also be treated by medical means. It may also be that the body lacks vitamins and other substances that it should have, leading to the formation of red birthmarks. Patients can eat more whole grains or beans, and can slightly dilute birthmarks. Red birthmarks are also closely related to environmental factors. If you often eat foods containing hormones or touch products containing hormones in your life, it will lead to skin pigmentation and cause red birthmarks.