Causes

AK is caused by long term excessive sun exposure. Ultraviolet rays from sunlight can cause skin damage. Over time, this damage can cause abnormal growth of the skin such as AK.

Risk Factors

Factors that increase your chances of getting AK include:

Fair skin color

Easy sunburning

Extra exposure to sun

Occupations or pastimes in sunlight such as farmer, lifeguard, or athlete in outdoor sports

Symptoms

Symptoms may include:

Spotted or smeared red, thinning skin

Rough, scaly, or crusted patches

Diagnosis

You will be asked about your symptoms and medical history. A physical exam will be done.

A
biopsy
of the lesion may be done. The skin will be closely examined for cancer.

Treatment

Talk with your doctor about the best treatment plan for you. AK lesions increase your risk of skin cancer. The lesions are usually removed to decrease this risk. The lesion will also be monitored for signs of cancer.

The exact method of removal will be determined by the number and location of the lesions.

AK may be removed with:

Surgery

Cryosurgery

Chemical peel

Photodynamic therapy

Medications may also be applied over the skin. More than one treatment may be required. Over time, the medication will remove the AK. Medication may be an option for people with multiple AKs.

The procedures and medications will remove AK and allow healthy skin to grow in its place. Most treatments have some risk of scarring or discoloration of the skin.

Prevention

To reduce your chances of getting AK, take these steps:

Avoid sun exposure.

Protect your skin when outdoors. Wear long sleeves, long pants or a long skirt. Use a wide-brimmed hat, especially during the middle of the day.

Use sunscreen with an SPF of at least 30.

Revision Information

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.