I have a black spot that just appeared like a week ago on my left pinky toe and im scared its cancer?

Seeing Spots??: Calm down. The chances are that it is not cancer. and if it is, it is definitely treatable. Some conditions must be examined visually to be accurate and color changes, involving the skin or nails, is one. Take a picture now to memorialize it for future reference. To remove all doubt you might have, simply have your toe evaluated by a dermatologist. Healthtap can assist you or find one near you.