Lentigo is classified into different types according to what they look like, where they appear on the body, what has caused them, and whether they are linked with other diseases or conditions.
Lentigo may appear as a single mark or as a group (this is more common) and can be jagged or smooth-edged. They are usually round and between 3-15 mm in diameter. It is important to keep an eye on any marks on your skin that you’re concerned about.
The ABCD-Easy rules is a good way of tracking changes that might indicate a 'melanoma':
A - Asymmetry: Normal moles are symmetrical, draw a line through the middle. Both sides should be symmetrical. It may be something more sinister otherwise and worth seeing your doctor.
B - Border: Moles that may cause cancer often have borders that are uneven, bumpy or jagged.
C - Color: Having freckles or moles with more than one colour can be a sign of something cancerous
D - Diameter: A growth larger than 6mm should be checked by a doctor
E - Evolving: Any changes in size, height or colour of a mole should be checked by a doctor