Clothes and jewellery rubbing against skin is annoying as it is, but can become even more grating if it rubs against something more sensitive, like a mole. The average person has anywhere between 10 and 50 moles (also called melanocytic naevi) on their body, with between 5 and 10% of the population possessing an atypical mole.
Hormonal imbalances or changes can cause the development of moles, which occur when melanocytes (pigment cells) grow in a cluster. This includes pregnancy, which can cause darkening, adolescence, in which moles may appear, and ageing (40-50+), in which time moles can disappear.
There are a few types of common moles, that are completely normal, and more that are rare.
Junctional Melanocytic Naevi – these are usually flat, round, and brown in colour.
Dermal Melanocytic Naevi – usually raised and pale, these moles can sometimes be hairy.
Compound Melanocytic Naevi – similar to dermal melanocytic naevi, these are raised and sometimes hairy, but are darker in colour.
Halo Naevi – so called because of the ring of paler skin that surround them
Atypical Naevi – (also called dysplastic naevi) are slightly larger, and may be rough or bumpy, and are seen in a range of colours
Blue Naevi – these are dark blue due to the pigment being deeper in the skin
NHS The ABCDE Rule
If you are worried about a mole, you should always consult your physician. The NHS recommends adhering to the ABCDE rule; if you notice changes or issues with Asymmetry, Border (irregularity), Colour, Diameter, or Enlargement/Elevation, you should see a professional. To reduce the likelihood of mole development or growth, it is recommended that you limit the amount of time you spend in the sun, and if not, cover up and use a broad spectrum sunscreen (that protects against UVA and UVB rays).
You should also try to avoid sunlamps or sunbeds, as they can have a detrimental effect.
For more info on what causes moles
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