What are the causes of skin cancer?
The two main causes of skin cancer are the sun’s harmful ultraviolet (UV) rays and the use of UV tanning beds.
What is one of the main causes of skin cancer?
Ultraviolet (UV) light from the sun is the main cause of most skin cancers. UV light damages the DNA (genetic material) in our skin cells and can cause skin cancer.
Which two types of cancer can originate in the cells of our skin quizlet?
Basal and squamous cell skin cancers are the most common types of skin cancer. They start in the top layer of skin (the epidermis), and are often related to sun exposure. Cancer starts when cells in the body begin to grow out of control.
What are some causes of skin cancer and how can it be prevented?
Most skin cancers are caused by too much exposure to ultraviolet (UV) rays. UV rays come from the sun, tanning beds, and sunlamps. UV rays can damage skin cells. To lower your risk of getting skin cancer, you can protect your skin from UV rays from the sun and from artificial sources like tanning beds and sunlamps.
What are the 4 types of skin cancer?
There are 4 main types of skin cancer:
- Basal cell carcinoma. Basal cells are the round cells found in the lower epidermis. …
- Squamous cell carcinoma. Most of the epidermis is made up of flat, scale-like cells called squamous cells. …
- Merkel cell cancer. …
Can kids get skin cancer?
Key points about skin cancer in children
Skin cancer is rare in children. Skin cancer is more common in people with light skin, light-colored eyes, and blond or red hair. Follow the ABCDE rule to tell the difference between a normal mole and melanoma. Biopsy is used to diagnose skin cancer.
What chemicals can cause skin cancer?
Chemical exposure: Certain chemicals, including arsenic, industrial tar, coal, paraffin and certain types of oil, may increase the risk for certain types of non-melanoma skin cancers.
Can smoking cause skin cancer?
People who smoke are more likely to develop squamous cell skin cancer, especially on the lips. Smoking is not a known risk factor for basal cell cancer.
Do skin cancers hurt?
Skin cancers often don’t cause bothersome symptoms until they have grown quite large. Then they may itch, bleed, or even hurt. But typically they can be seen or felt long before they reach this point.
Which of the following types of light is most likely to cause skin cancer?
UVB rays have slightly more energy than UVA rays. They can damage the DNA in skin cells directly, and are the main rays that cause sunburns. They are also thought to cause most skin cancers. UVC rays have more energy than the other types of UV rays.
Which of the following would be most likely to cause cancer?
The most common risk factors for cancer include aging, tobacco, sun exposure, radiation exposure, chemicals, and other substances, some viruses and bacteria, certain hormones, family history of cancer, alcohol, poor diet, lack of physical activity, or being overweight.
Which of the following factors contributes to the incidence of skin cancer?
Exposure to ultraviolet (UV) rays is a major risk factor for most melanomas. Sunlight is the main source of UV rays. Tanning beds and sun lamps are also sources of UV rays. While UV rays make up only a very small portion of the sun’s rays, they are the main cause of the damaging effects of the sun on the skin.