Is metastatic melanoma preventable?

Yes and No: Certain genetic conditions may predispose someone to malignant melanoma. But there are certainly things that can be done to boost one's immune system to fight cancers. And those with irregular moles should be seen at least yearly by their doctor or dermatologist to remove suspicious moles. Therefore, preventing a metastatic process.

Sun block!: Sun block and sun protection will help prevent melanoma from developing at all. Early diagnosis is critical to prevening a melanoma from metastasizing. If you a lesion which meets any abcd criteria get it checked out asap. A-asymmetric, b-irregular borders, c-varied color, d-diameter >6mm.

Sunscreen: Melanoms is preventable by wear sunscreen. Avoid getting a sunburn. Cover your skin with a hat and clothes when you are out for extended periods of time.Never use a tanning bed. And see your friendly dermatologist for complete skin examinations. Early detection offers the best chance at a cure.