The main reasons for dry lips include changes in humidity and weather, especially cold and dry conditions, sun exposure, frequent licking of the lips, dehydration, and certain medications. Lips lack oil glands, making them more vulnerable to drying out. Additional causes can be allergies, vitamin deficiencies (such as B-complex vitamins), thyroid issues, and underlying health conditions. Excessive vitamin A intake and medication side effects can also cause dryness. Habitual lip licking can create a cycle of moisture loss, worsening the dryness. Sun damage and exposure to harsh environmental factors like wind further aggravate this condition. Dehydration, where the body lacks adequate water, is a very common factor causing lip dryness. In some cases, severe dry lips might be attributed to infections or inflammatory diseases. For children, common causes also include frequent lip licking and mouth breathing due to colds or nasal congestion. Taking preventive measures such as using lip balms with sun protection, staying hydrated, avoiding lip licking, and protecting lips from harsh weather can help reduce dryness and irritation. Summary of causes:
- Cold, dry, or windy weather
- Sun exposure without protection
- Frequent lip licking
- Dehydration
- Vitamin deficiencies (B vitamins, zinc, iron)
- Allergic reactions or irritants
- Side effects of certain medications
- Underlying health conditions (thyroid disease, inflammatory bowel disease)
- Excessive vitamin A intake
- Infections or inflammatory conditions impacting the lips
If dryness persists or worsens, it may be worth consulting a healthcare professional to rule out underlying issues or infections and to get effective treatment recommendations.