The black spots under the skin does not mean that your son is infected by cancer. It is just a thought. But the best condition can be known after complete check up. I don't believe black spots is the sign of cancer.
You have to make a complete medical check for these spots. First consult with some skin specialists and then go to a good cancer hospital.
You have to make a complete medical check for these spots. First consult with some skin specialists and then go to a good cancer hospital.