It refers to texture issues, blotchy skin, facial flushing, and hypopigmentation or hyperpigmentation. Many different conditions can affect the pigment cells (melanocytes) present in the skin and cause discoloured patches of skin. One of the very common causes of an uneven skin tone is hyperpigmentation (dark spot). Other common causes are sun damage, acne and acne scars, hormonal changes, aging, and skin damage.
