What could be causing my prominent ears? (photo)

When the bowl, or concha, of the ear is deep, that is one of the main reasons why somebody’s ear can protrude too far from the head. Suture Otoplasty techniques work very well for setting back the ear, and making it less prominent and less distracting. I hope this helps! Sincerely, Dr. Joseph

Yes, the point to which you are referring is referred to as Darwin's tubercle. This can easily be removed in an office setting, if you choose to do so.

Based on the one picture, you appear to have some excess conchal bowl cartilage causing prominent ears. The unfurling of some of the helix is contributing as well.

On first glance, it does appear that the bump on the rim of your ear is Darwin’s Tubercle. Its formation, as well as the projection of your ears, are generally present at birth. Projection can be reduced with setback otoplasty.

Prominent ears are commonly caused by a lack of the anti helical fold of the ear where it is flattened instead. Enlargement of the conchal/bowl of the ear is the other main cause. You do have a Darwin tubercle, but it is likely better to correct the prominence by folding the ear rather than trying to remove the tubercle, but it can be done. I suggest you see a facial plastic surgeon like myself who can assess your ears and advise you accordingly.

Yes. You have a Darwin tubercle. It can be removed easily and without visible scars using the minimally invasive stitch method from Dr. Merck

It appears that the cartilage called the conchal bowl is large. This is one common reason for people to have prominent ears and can be addressed with a surgery called an otoplasty.