SchoolTube Community
Title: Skin Cancer: What You Need to Know
Introduction:
Skin cancer is the most common cancer in the United States, with over 9,500 cases diagnosed each year. It is also one of the most preventable cancers, as it is caused by exposure to ultraviolet (UV) radiation from the sun or tanning beds.
What is UV radiation?
UV radiation is a type of electromagnetic radiation that is emitted by the sun and tanning beds. It is divided into three types: UVA, UVB, and UVC.
- UVA radiation has the longest wavelength and is responsible for tanning the skin.
- UVB radiation has a shorter wavelength and is responsible for sunburns.
- UVC radiation has the shortest wavelength and is the most dangerous, but it is mostly absorbed by the ozone layer.
How does UV radiation cause skin cancer?
UV radiation can damage the DNA in skin cells, which can lead to the development of skin cancer. The risk of skin cancer increases with the amount of UV radiation exposure a person has.
Who is at risk for skin cancer?
Anyone can get skin cancer, but some people are at higher risk than others. These include people who:
- Have fair skin
- Have a family history of skin cancer
- Have a lot of moles
- Have a weakened immune system
- Spend a lot of time in the sun
What are the symptoms of skin cancer?
The symptoms of skin cancer can vary depending on the type of skin cancer. Some common symptoms include:
- A new mole or a change in an existing mole
- A sore that does not heal
- A scaly or crusty patch of skin
- A lump or bump on the skin
- Bleeding or oozing from the skin
How is skin cancer diagnosed?
Skin cancer is diagnosed by a dermatologist, who will examine the skin and may take a biopsy of any suspicious areas. A biopsy is a procedure in which a small piece of skin is removed and examined under a microscope.
How is skin cancer treated?
The treatment for skin cancer depends on the type of skin cancer and the stage of the cancer. Treatment options may include surgery, radiation therapy, chemotherapy, and immunotherapy.
How can skin cancer be prevented?
There are a number of things you can do to help prevent skin cancer, including:
- Seek shade when the sun is strongest, between 10am and 4pm.
- Wear protective clothing, including a hat, sunglasses, and long sleeves and pants.
- Use sunscreen with an SPF of 30 or higher.
- Reapply sunscreen every two hours, or more often if you are swimming or sweating.
- Avoid tanning beds.
- Get regular skin exams from a dermatologist.
Conclusion:
Skin cancer is a serious disease, but it is also one of the most preventable. By following these tips, you can help reduce your risk of skin cancer and protect your skin from the sun's harmful UV rays.