Im 22 with minor anal leakage after bowel movement with anal itching is anal leakage sign of colon cancer?

Unlikely: At your age, your symptoms are unlikely to be due to colon cancer. However, you should be evaluated by an md because this is a situation that should be corrected.

Doubtful: Although rectal/anal cancer can have some leakage issues, it's unlikely at your age. More common would be hemorrhoids causing leakage. Either way, you should see your physician.