A- Asymmetry – If one half of the moles is not matching the other half and it is asymmetric
B- Border – The edges or border of the mole is blurry or irregular
C- Colour – If colour of the mole is not uniform and has shades of tan and brown or other deeper colour
D- Diameter – the diameter is larger than 5mm
E- Evolution – If the mole is changing in shape, size or colour. If it is symptomatic like pain or discharge or increasing in size.