This is the small pointed lump of cartilage opposite the tragus. Not a hugely common piercing we did our first one of these in 1998 but it did not really become popular until roughly 2007. Care needs to be taken with this piercing that the piercer does not slip and clip the edge of the cartilage which can split the edge of the cartilage or place the jewellery against the cartilage and it will cause it to reject.
An effective looking piercing when done well and it can be done with either curved bars or ball closure rings. Depending on the size of the ear multiple anti tragus piercings can be clustered in this area and once healed some of the pretty helix and eyebrow jewellery can even be worn here.
In 2019 it does not make the top 10 piercings list but it is an effective and slightly different piercing for the slightly adventurous.