Detailed answer

Dry and cracked lips can be caused by several factors. Dehydration is a common cause, as lack of hydration can lead to dryness and chapping of the lips. Harsh weather conditions, such as cold and dry climates, can also strip the lips of their natural moisture, resulting in dry and cracked lips. Another common habit that can contribute to this issue is frequent licking of lips, as saliva evaporates quickly, leaving the lips even drier. Certain medications, such as acne treatments or diuretics, can also cause dryness and cracking of the lips as a side effect. Additionally, medical conditions like eczema, psoriasis, and vitamin deficiencies can lead to dry and cracked lips. It is important to protect and moisturize the lips with lip balms or ointments and to address any underlying factors that may be contributing to the issue.