Skin cancer is one of the most common types of cancer, with over 5 million cases diagnosed in the United States each year. Exposure to ultraviolet (UV) radiation from sunlight is the main cause of skin cancer. While some sun exposure is needed for the body to produce vitamin D, excessive exposure can damage skin cells and lead to the development of skin cancers. Several factors can increase a person’s risk of developing skin cancer from UV radiation exposure.
The three main types of skin cancer are basal cell carcinoma, squamous cell carcinoma, and melanoma. Basal cell carcinoma is the most common and least dangerous type, while melanoma is less common but more likely to spread if not caught early. Knowing the causes of skin cancers can help individuals take preventative measures to protect their skin and lower their cancer risk. The following are 15 leading causes and risk factors for developing skin cancer:
15Mole Patterns
Certain moles and lesions present at birth or acquired over time can progress to skin cancers through genetic mutations. Dysplastic nevi that are larger, irregularly shaped, and have uneven coloring are linked to increased melanoma risk. Monitoring moles for changes is essential for early detection.
In summary, skin cancers primarily develop from DNA damage caused by UV radiation exposure from the sun, indoor tanning, or other artificial sources. Limiting exposure through sunscreen, protective clothing, and avoiding direct sun when possible can greatly reduce risk. Those with fair features, histories of sunburns or previous skin cancer, or weakened immune systems require extra vigilance against UV damage to avoid cancers. Regular self-exams and professional screening provide for early detection and treatment when cancers do develop.
