There are more reasons for swollen and itchy gums, the details are as follows: 1, most commonly caused by periodontitis leading to inflammation of the gums, which is due to the accumulation of a large amount of calculus and bacteria in the gum local formation of periodontal pockets, causing inflammation and swelling of the gums or even pus. In addition to swollen and itchy gums, this condition is usually accompanied by bleeding gums and obvious gum recession, and many people even feel comfortable using a toothpick to pick their gums hard and let them bleed a little. 2, more causes of swollen and itchy gums are also stuffed teeth, that is, after meals, feeling stuffy and swollen in individual teeth, uncomfortable, swollen gums and even bleeding, until after using a toothpick to remove the stuffed teeth, then feel comfortable The reason for swollen and itchy gums is still root inflammation, i.e. periapical inflammation. This kind of swollen and itchy gums is usually accompanied by significant pain.