Why Is My Upper Lip a Bit Hard?

The upper lip feeling a bit hard can be attributed to improper diet, vitamin C deficiency, allergic urticaria, and other reasons. 1. Improper Diet: During daily meals, if spicy and stimulating foods such as chili peppers and garlic are frequently consumed, they may irritate the local mucosa, causing symptoms such as pain and swelling. 2. Vitamin C Deficiency: Vitamin C promotes the synthesis of collagen in the human body. If deficient, it may increase the fragility of local skin capillaries and mucosa, leading to symptoms such as local ulcers, swelling, bleeding, and pain. 3. Allergic Urticaria: If you have an allergic constitution, after coming into contact with allergic substances such as catkins, pollen, and animal dander, the permeability of local blood vessels may increase, causing acute allergic reactions such as hives, hardness and swelling of the lips, and itchiness. Besides the aforementioned common reasons, it may also be related to factors such as neurovascular edema. If it affects your normal life or dietary habits, you should promptly visit the hospital, cooperate with doctors to identify the specific cause, and undergo standardized treatment as advised by the doctor.