Based on the history and the photographs, it appears that the cheek mucosa is getting traumatized repeatedly during biting, possibly due to an erupting wisdom tooth, a sharp tooth edge, or an unfavorable bite relationship in that area. The repeated trauma can cause pain, redness, ulceration, and occasional bleeding.
Regarding wisdom tooth removal,
diabetes itself is not a contraindication for surgery. However, your blood
sugar levels should be reasonably controlled before any surgical procedure to reduce the risk of delayed healing and infection.
Next Steps
I would recommend:
* Consultation with an Oral & Maxillofacial Surgeon.
* An OPG (panoramic X-ray) to assess the position of the wisdom tooth.
* Avoiding further cheek biting and maintaining good oral hygiene.
* Using warm saline rinses to help the traumatized tissue heal.
* Reviewing your recent blood
sugar values (
HbA1c and glucose levels) before planning extraction.
Health Tips
If the wisdom tooth is the cause of the recurrent cheek biting, extraction may be recommended after appropriate medical evaluation and glycemic control.