Mouth always long mouth ulcers may be recurrent aphthous ulcers, recurrent aphthous ulcers, the specific etiology of the aphthous ulcers is not clear, may be the result of a variety of factors, such as genetic factors, infectious factors, immune factors, etc., specific as follows.
1. Genetic factors: the study of genetic markers and genetic material of recurrent Aphthous ulcer shows that the development of recurrent Aphthous ulcer has genetic tendency.
2. Infectious factors: L-type streptococcus, Helicobacter pylori virus, adenovirus, cytomegalovirus, herpes simplex virus and so on can be found in some lesions of recurrent Aphthous ulcer.
3. Immune factors: studies show that humoral immunity and autoimmune response may be one of the factors in the development of recurrent Aphthous ulcers.
There may be other reasons for mouth ulcers, so it is recommended to go to a regular medical institution to receive professional treatment.