The dry and cracked mouth skin and bleeding are commonly caused by low water consumption, dry weather, etc. The mucous membrane of the lips is dehydrated and thus dry and cracked, and the dryness and cracking can be accompanied by bleeding. In addition, bad habits, vitamin deficiency, lip infections, etc. may also lead to dry and cracked mouth, bleeding. 1, bad habits: such as often licking the lips or love to eat spicy stimulating food will lead to dry and cracked mouth. The human body’s saliva stays on the lips when licking the lips, which can briefly play a moisturizing role, but the saliva will slowly evaporate in the air, while also taking away the moisture of the lips themselves, so it will lead to drier lips, plus the digestive enzymes in the saliva will also destroy the lips’ own protective film, which leads to cracks in the lips and easy bleeding. If you have this bad habit to pay attention to try to avoid, drink more water, always have lip balm around to apply diligently to protect the lips; 2, lack of vitamins: especially the lack of vitamin A, vitamin B prone to dry lips, cracked, bleeding situation. Lack of vitamin B can easily lead to diseases such as inflammation of the mouth and lips and tongue inflammation, which can lead to dry, cracked and bleeding lips. Lack of vitamin A can easily lead to dry skin and other conditions, which can also induce dry lips. This time you need to eat more fresh vegetables and fruits, such as carrots, mushrooms, celery, etc., or you can also choose to take a multivitamin supplement; 3, lipitis: lipitis is a general term for inflammatory diseases that occur in the lips, the typical symptoms are dry lips, peeling, bleeding, etc., and sun exposure, climate change, local irritation and other factors, the symptoms appear with symptomatic treatment, you can local wet compresses, you can also use antibiotics 4, other factors: such as improper use of cosmetics, allergies to ultraviolet light and other factors can also lead to dry and cracked lips bleeding. Some diseases such as diabetes may lead to the occurrence of the symptom of dry, cracked and bleeding lips, which requires active treatment of the original disease.