Are you often troubled by recurrent mouth ulcers?Do they sting painfully when you eat and even affect your speech?
This is not accidental.Medical researchers have found that people with diabetes have a higher risk of mouth ulcers, which tend to recur frequently and be slow to heal, seriously affecting quality of life.Today, we help you deal with mouth ulcers scientifically, from symptom recognition to targeted care.
Two Quick Ways to Identify Mouth Ulcers
Tip 1: Watch for the stinging warning sign
When you eat spicy or sour food and feel a sudden sharp stinging pain in one part of your mouth,this is very likely a warning sign that an ulcer is developing.
Tip 2: Check the appearance of the painful area
Open your mouth in front of a mirror and check common areas:the inner cheeks (buccal mucosa), tongue, and gums.Ulcers usually look like this:
Color: pale yellow or greyish-white in the center, with a red border
Size: usually as small as a grain of rice (2–3 mm in diameter)Why Are People with Diabetes Prone to Mouth Ulcers?
And How to Care for Them?
- High sugar in the mouth weakens immunity and speeds up bacterial growth
When blood glucose is high, sugar levels in saliva also rise,allowing bacteria to multiply rapidly.Coupled with lowered immunity, even minor injuries easily become infected and develop into ulcers that heal slowly.
What you can do:Strengthen blood glucose control through insulin injections, oral antidiabetic drugs, and diet managementto reduce the impact of diabetes on ulcer healing. - Frequent urination causes a “dry mouth”
Polyuria — one of the classic “three polys and one loss” symptoms of diabetes —leads to severe water loss in the body.Without proper hydration, bacteria thrive more easily.
What you can do:Carry a water bottle and drink water regularly.Set phone reminders to drink when going out. - Overly strict dieting leads to nutrient deficiencies
Many people with diabetes restrict their diet too strictly to control blood sugar,resulting in insufficient intake of nutrients —especially zinc, iron, vitamin B12, and folic acid.This slows wound healing.
What you can do:Eat plenty of fresh vegetables and moderate amounts of fruits rich in vitamins and minerals,such as oranges, lemons, and kiwifruit.Adequate meat, dairy, and shellfish are good sources of vitamin B12and help speed up ulcer healing. - Digestive problems reduce nutrient absorption
Diabetes can disrupt gut function, causing diarrhea or constipation.Nutrients are excreted before being absorbed,lowering immunity and making ulcers harder to heal.
What you can do: Choose easy-to-digest foods such as eggs and soy products
During flare-ups, avoid fried foods (fried pork chops, fried chicken legs) and rough, hard foods that irritate ulcers
Do not skip meals due to pain; eat small, frequent meals
Choose semi-liquid foods like vegetable congee and steamed egg custard - Genetic tendency combined with high blood glucose
If your parents often had mouth ulcers, you may be naturally more susceptible.High blood glucose acts as a trigger that brings out this genetic tendency.
What you can do:While we cannot change genetics, we can prevent or relieve symptoms with daily oral care: Rinse your mouth with warm water before meals
Clean your teeth promptly after meals
Use a soft toothbrush and brush gently to avoid damaging the oral mucosa
For severe ulcers, rinse with mouthwash or light salt water for 30 seconds
If needed, use medications such as watermelon frost or vitamin preparations
In addition, long-term anxiety, poor sleep, and decreased estrogen levels in womenalso increase the risk of mouth ulcers.Along with self-adjustment, do not hesitate to seek help from your doctor.
Oral health is an important part of diabetes management.A small mouth ulcer can be a warning sign of unstable blood glucose.By focusing on blood glucose control and proper daily care,people with diabetes can still enjoy a healthy, comfortable smile!