Detailed answer

Hyperpigmentation refers to the darkening of patches on the skin, usually caused by an excess of melanin production. It is not commonly associated with oral erosions or ulcers. Oral erosions or ulcers typically manifest as open sores or white patches in the mouth, but they do not directly cause hyperpigmentation. However, it is important to note that certain conditions or medications, such as lichen planus or certain antibiotics, may cause hyperpigmentation as a side effect. If you are experiencing hyperpigmentation in conjunction with oral erosions or ulcers, it is advisable to consult a medical professional for a proper diagnosis and appropriate treatment.