Whether there is a direct relationship is uncertain, but there should be indirect reasons. There are two main reasons for oral ulcers. One is the oral cavity itself, such as poor oral cleaning; The second is gastrointestinal problems. It can be said that recurrent oral ulcers are not caused by the oral cavity itself, but by gastrointestinal problems. When gastrointestinal problems occur, it will cause endocrine disorders, and toxins in the body will accumulate over time. When it is deposited to a certain amount and cannot be photographed outside the body through its own excretion and decomposition system, some gases will be produced in the gastrointestinal tract, and these harmful gases will be discharged from the respiratory system through the nose and mouth. But when you sleep, your mouth is closed most of the time, and these gases will stay for a long time, which will cause oral ulcers or bad breath over time, which is why patients with oral ulcers are usually accompanied by bad breath and constipation.
Hepatitis B, namely viral hepatitis, is an infectious disease caused by hepatitis B virus (HBV), which mainly manifests as inflammatory lesions of the liver and can cause multiple organ damage. The liver is the chemical plant of the human body. Everything we eat is absorbed by the stomach and then decomposed and combined by the liver. When there is a problem with the liver, it can't work normally like a healthy person, which leads to the abnormality of the stomach and intestines, so there are some indirect reasons from pathology.