It’s common to find a new spot or pimple on your skin every now and then. They can occur when the pores of your skin become blocked with oil, dead skin, or bacteria but can also be triggered by factors such as hormonal changes.

Often they will clear up on their own, or might require the use of a cleansing wash or other products to speed this along.

However, an expert has warned that some spots might be more sinister than others.

Dermatologist Dr Mark Strom, took to social media platform