Sen. John McCain (Ariz.), the presumptive Republican presidential nominee, told reporters Monday that his dermatologist removed a small piece of skin from his cheek but added that there is no reason for concern.

“I, as I do every three months, visited my dermatologist this morning,” McCain said in California. “She said that I was doing fine, took a small little nick from my cheek, as she does regularly, and that will be biopsied, just to make sure that everything is fine.”

The GOP presidential candidate used the opportunity to ask Americans to take precautions to prevent skin cancer.

“Stay out of the sun as much as possible. Wear sunscreen,” he stated. “And if you ever have any slight discoloration, please go to your dermatologist or your doctor and get it checked up on.

"Melanoma is a preventable occurrence. It really is. It’s one of the most preventable occurrences.”

 McCain was treated for malignant melanoma in August 2000. He has been cancer-free since then but gets checkups regularly.