Cracked Mouth Corners

Cracked mouth corners, also known as angular cheilitis, may be a sign of a vitamin B2 (riboflavin) deficiency. Take a vitamin B complex supplement that contains about 50 mg of B2 daily and eat plenty of dark green leafy vegetables, almonds, parsley and wheat germ.

Other possible causes include a folate, iron, or zinc deficiency, bacterial or viral infection, allergy to lipstick or toothpaste, extreme dryness, and poorly fitting dentures.