Itchy gums can be caused by gingivitis, calculus, gum ulcers, abnormal neuromodulation and other reasons. 1. Gingivitis: without paying attention to oral hygiene, plaque irritation can easily cause gingivitis, which can cause itchy gums. 2. Dental calculus: usually do not pay attention to oral hygiene, do not brush your teeth on time, it is possible to form dental calculus will also stimulate the gums, resulting in itchy gums. 3. Gum ulcers: Gum ulcers and other diseases can also cause itchy gums and gum pain. 4. Abnormal neuromodulation: Nerve damage from various causes, as well as diseases such as diabetes that cause neuropathy, can also lead to itchy gums. Itchy gums may have other reasons, you need to go to the hospital in time to check, follow the doctor’s instructions for treatment.