In simple terms, skin discolouration of any type like dark spots, sun damage, acne scars, age spots, or melasma is known as hyperpigmentation. On the other hand, melasma is a type of hyperpigmentation that can be caused by various reasons and hence requires different treatment. There is a sleek difference between the two, as these are represented more or less in a similar fashion. Read further to know the differences between the two.