Yes, skin discolouration often refers to pigmentation, which is skin colouring. Pigmentation issues occur when melanin, the pigment responsible for skin colour, is overproduced or underproduced in certain areas, leading to dark spots (hyperpigmentation) or light patches (hyperpigmentation). Conditions like melasma, sunspots, and post-inflammatory hyperpigmentation are common forms of pigmentation-related discolouration.