Actinic keratoses, also known as solar keratoses, are rough patches of skin caused by damage from years of sun exposure.
They aren't usually a serious problem and can go away on their own, but it's important to get them checked as there's a chance they might turn into skin cancer at some point.
Actinic keratoses usually appear on skin that's exposed to the sun.
Common places to get them are the:
The patches can be:
See your GP if you have:
It can be hard to tell if you have actinic keratoses. The patches can look similar to other conditions such as warts or skin cancer.
Your GP can usually check if it's actinic keratoses by looking at your skin. They can refer you to a skin specialist if they're not sure.
Talk to your GP about the treatment options for actinic keratoses.
Sometimes they may just suggest that you check the patches regularly and come back if they start to grow quickly, hurt or bleed.
If the patches cause problems (for example, they're unsightly or sore) or your doctor is concerned they could turn into cancer, they may suggest treatments such as:
The best treatment depends on how many patches you have, where they are and what they look like. Ask about the benefits and risks (such as side effects or scarring) of each option.
If you have actinic keratoses, it's very important to protect your skin from the sun.
This can reduce the risk of more patches appearing and may help reduce your risk of getting skin cancer.
To protect yourself from the sun:
Read more sun safety tips.
It may also help to use moisturising creams (emollients) on your skin every day to stop it becoming dry.
There's a small chance that actinic keratoses could eventually turn into a type of skin cancer called squamous cell carcinoma (SCC) if they're not treated.
You're at a higher risk if you have lots of patches for a long time.
Research suggests that people with several patches have around a 1 in 10 chance of getting skin cancer within 10 years of first developing actinic keratoses.
Signs that a patch has turned into cancer include it:
See your GP if you have these symptoms or if you get any new patches or lumps on your skin.
SCC can usually be treated successfully if it's caught at an early stage. Read more about treatments for skin cancer.