Small mole top of foot for years.slightly raised on a pigment base.recently base is a bit darker, no bigger, no itch.menopause, could this be hormones?

Holy Mole-y: Hormones can effect the appearance of moles. In most cases menopause will tend to fade or decrease the presence of a mole. Whenever a mole has a noticeable change, including color, it would be best to have it examined by a specialist. Dermatologists are usually able to make a determination of the mole's status and suggest treatment options.

Biopsy: If the mole has changed in any way then it should have a biopsy done on it.