What are the causes of skin cancer quizlet?

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 by far the most common cause of skin cancer?

Most basal cell and squamous cell skin cancers are caused by repeated and unprotected skin exposure to ultraviolet (UV) rays from sunlight, as well as from man-made sources such as tanning beds. UV rays can damage the DNA inside skin cells.

What are the 5 types of skin cancer?

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. Merkel cell cancer is a highly aggressive, or fast-growing, rare cancer. …
  • Melanoma.

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.

How is skin cancer prevented?

Skin Cancer Prevention

  1. Seek the shade, especially between 10 AM and 4 PM.
  2. Don’t get sunburned.
  3. Avoid tanning, and never use UV tanning beds.
  4. Cover up with clothing, including a broad-brimmed hat and UV-blocking sunglasses.
  5. Use a broad-spectrum (UVA/UVB) sunscreen with an SPF of 15 or higher every day.
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Are skin cancers painful?

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.

How bad is skin cancer?

Skin cancer is the most common cancer in the United States. 1 If detected early, survival rates for skin cancer are good. However, some types of skin cancer are more aggressive than others.

Melanoma.

Five-Year Relative Survival
Stage Percentage of Cases by Stage 5-Year Relative Survival
Distant 4% 27.3%

What are the most common skin cancers?

Basal and squamous cell carcinomas are the two most common types of skin cancer. They begin in the basal and squamous layers of the skin, respectively. Melanoma, the third most common type of skin cancer, begins in the melanocytes.

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.

Who is more prone to skin cancer?

Skin cancer is more common in fair skinned people because they have less of the protective pigment called melanin. People with darker skin are less likely to get skin cancer. But they can still get skin cancer. Darker skinned people are particularly at risk of skin cancer where the body has less direct sun exposure.

Can smoking cause skin cancer on face?

No significant association was found between smoking and nodular basal cell carcinoma, superficial multifocal basal cell carcinoma, or malignant melanoma. Conclusion: Tobacco smoking is an independent risk factor for cutaneous squamous cell carcinoma.

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