How to know your kind of balding?

This is what I have observed. If you have one-sided balding, that is if one part of your scalp balds while other parts of your scalp are still hairy, you will have hereditary hair loss which is quite hard to treat.
On the converse, if your balding is quite uniform, like me, then you have oily hair loss. To solve oily hair loss, use shampoo that can combat greasy scalp.