Why do my lips get extremely dry and cracked only in the corners?

Why do my lips get extremely dry and cracked only in the corners?

1. Introduction Extreme dryness and cracking isolated to the corners of the lips is clinically known as angular cheilitis, an inflammatory condition typically triggered by the pooling of saliva in the oral commissures. This trapped moisture creates a highly favorable environment for opportunistic fungal or bacterial infections, which ultimately break down the delicate skin barrier. … Read more