What causes chapped and peeling lips, and why do they hurt?
Sep 13, 2022
Source: Cainiu Health
Dr. Liu Wan
Introduction
The moisture of the lips depends on the capillaries within them. In dry climates, the lips lack hydration from atmospheric moisture and may become chapped or peel. Additionally, a deficiency of vitamins in the body can slow microcirculation, which also contributes to this condition. Significant emotional fluctuations can lead to internal heat ("fire"), causing the lips to crack. Once the lips are cracked, the underlying tissue is exposed, making them sensitive and painful when stimulated.
Generally, chapped and peeling lips are caused by factors such as vitamin deficiency, dehydration, cheilitis (lip inflammation), and individual physical conditions. Lip pain occurs when cracks expose the underlying tissue. Details are as follows:
1. Vitamin Deficiency
Dry, cracked lips are often related to insufficient intake of fresh vegetables in daily diet and inadequate intake of B-complex vitamins. Moisture in the lips relies on a rich network of capillaries for maintenance. Especially during autumn and winter, when circulation slows down, a lack of vitamin B2 and vitamin A can lead to dry, flaky, and cracked lips. It is recommended to eat more fresh fruits and vegetables to supplement essential vitamins.
2. Dehydration
In dry environments or during autumn and winter, low humidity in the air fails to moisturize the lips, while wind can further evaporate surface moisture, causing dryness. In cold weather, slowed blood circulation in the lips may also result in chapping and peeling. Drinking plenty of water and using lip balm regularly can help keep lips hydrated and prevent dryness.
3. Cheilitis (Lip Inflammation)
Cheilitis is often caused by the bad habit of licking dry lips, which increases the risk of infection. Breaking this habit is essential. Locally, antiseptic and anti-inflammatory medications can be applied via wet compresses, and in some cases, corticosteroid medications may be prescribed.
4. Individual Physical Factors
Emotional fluctuations and mental stress can contribute to "internal heat" in the body, leading to dry and peeling lips, especially in individuals with high emotional sensitivity. Managing emotions, reducing stress, and engaging in regular physical activity can help alleviate these symptoms.
When lips become chapped and peel, the underlying tissue is exposed to air. The lips contain abundant nerve endings and are highly sensitive, so exposure of the subcutaneous tissue causes pain, which becomes particularly noticeable when licking the lips.
In daily life, it's important to maintain a light diet, avoid spicy and irritating foods, refrain from staying up late, maintain a regular routine, exercise regularly to boost immunity, and drink sufficient water. Since there are many potential causes of chapped and peeling lips, if symptoms persist or worsen, it is advisable to seek timely medical attention and follow professional treatment guidance.
