Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Oral submucous fibrosis ?
    ### Response:
    What are the signs and symptoms of Oral submucous fibrosis? The Human Phenotype Ontology provides the following list of signs and symptoms for Oral submucous fibrosis. If the information is available, the table below includes how often the symptom is seen in people with this condition.
    