Many people have experienced white spots on their lips. In severe cases, it may even be accompanied by ulcers on the skin mucosa, which seriously affects the daily life and work of patients. There are many clinical causes of white spots on lips, such as vitamin deficiency, sebum ectopic disorder, endocrine disorders, etc. First of all, vitamin deficiency in the patient’s body is a major cause of white spots on the lips. The usual diet is too greasy and spicy, and rarely eat fresh fruits and vegetables, resulting in vitamin deficiency in the body, which leads to the phenomenon of white spots on the lips. These patients should pay attention to adjusting their diet, and can take vitamin b complex tablets to help relieve the symptoms. Secondly, nowadays, young people are suffering from endocrine disorders due to mental stress, late nights, smoking and alcoholism, etc. The abnormal hormone levels in the body affect the normal physiological functions and appear white spots on the lips. These patients usually adjust their mindset and maintain a regular work and rest schedule to help maintain normal endocrine function, which can alleviate the condition. Finally, sebum ectopic disorder is also an important cause of white spots on the lips. White spots on the lips caused by seborrhea are not accompanied by obvious symptoms and do not require specialized treatment as they appear as single raised white bumps on the lips. All in all, white spots on lips are mainly caused by vitamin deficiency, endocrine disorder and sebum ectopic disorder. The occurrence of white spots on lips can be prevented by maintaining a positive and optimistic attitude and adjusting the lifestyle in normal times.