Could it be that i have skin cancer at age 15?

Skin cancer age 15: Yes, it is possible. A recent study showed an increase in malignant melanoma in children, particularly those age 15-19, thought to be linked to use of tanning beds. Genetics and extensive ultraviolet light exposure can increase risk of skin cancer in teens. Any changing or symptomatic mole (itching, bleeding, crusting, tender, etc) needs to be shown to dermatologist as soon as possible.

A possibility: It is unlikely for a 15 yo to get the most common types of skin cancer, namely squamous cell or basal cell carcinoma. However, the deadliest type of skin cancer, melanoma, can certainly occur in a 15 yo or even in younger patients. Melanoma is the most common form of cancer for young adults aged 25-29 ; the second most common cancer in adolescents and young adults aged 15-29.