What is a ‘Placket Bump’ in a shirt?

#TeachingsTuesdays

‘Placket bump’ is an undesired bump that arises between your collar button and the first button on the placket of your shirt when buttoned. This problem arises when the distance between those two buttons is above the standard spacing. 

However, there are two ways to solve this bump. One is by reducing the space by 0.5 or 1 inch. The second is by wearing a tie, which will automatically cover the bump and will not be visible from most angles.