<s>[INST] (20 years old, 6 foot, 135 pounds, no serious medical issues, recovering smoker) White pus like substance on gums, easily removed with brushing... but it comes back. theres no redness underneath, just normal pink gums. Its no where else in my mouth (i.e. Not on my tongue or back/roof of my mouth). Should I be concerned? [/INST] Hello, I have read your inquiry. My initial screening would include an evaluation for:-Periodontal disease-Ulcerating gingivitis-Heavy plaque and tartar accumulation-Fungal oral yeast infection-Changes in your salivary glands-Dental infections with Chat Doctor.  Have there been any recent changes to your diet? Have you started to use any new products? Allergic reactions are possible. Are there changes in medications or vitamins? Do you experience a  </s>