Moles, also known as nevi, are common skin growths resulting from clusters of melanocytes, the pigment-producing cells in your skin. They appear as small, dark spots. The growth of moles is primarily due to the proliferation of these melanocytes.
Factors Contributing to Mole Growth:
Several factors influence the development and growth of moles:
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Hormonal Changes: Hormonal fluctuations, particularly during puberty, pregnancy, and other periods of significant hormonal shifts, can stimulate melanocyte activity, leading to the appearance of new moles or the growth of existing ones. (Sources: Verywell Health, Healthline)
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Ultraviolet (UV) Radiation: Exposure to sunlight and UV radiation is a significant factor. Moles often appear on sun-exposed areas of the body, and prolonged sun exposure can contribute to the development of new moles and changes in existing ones. (Sources: Cleveland Clinic, Verywell Health)
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Genetics: A family history of many moles can increase an individual's likelihood of developing more moles. (Implied across multiple sources)
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Age: Most people develop the majority of their moles during childhood and early adulthood. Mole development generally slows down by age 40. (Sources: Houston Methodist, National Cancer Institute)
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Normal Growth: Some mole growth is simply a part of normal development. As a child grows, their moles will naturally increase in size. It's also normal for moles to change color (darken or lighten) over time, and some moles might even fade away. (Source: American Academy of Dermatology)
Key Takeaway:
Moles grow because of the increased proliferation of melanocytes, influenced by hormonal changes, UV radiation, genetics, and normal developmental processes. Regular self-skin exams are important to monitor any changes in existing moles or the appearance of new ones. (Mayo Clinic, Healthdirect, AIM at Melanoma Foundation, Cancer Council Australia - all support this understanding).
