Small bumps on the bed of the teeth after tooth extraction may be caused by gum tissue irritation due to congestion and edema, may also be caused by incomplete extraction. 1. Gum tissue stimulation, tooth extraction is an invasive operation, if the gum tissue is stimulated during the extraction process, it may lead to congestion and edema, so the symptoms of small bumps on the bed of the teeth after tooth extraction may occur. 2. Incomplete extraction, some patients with small bumps on the bed of the teeth may also be related to incomplete extraction, if the extraction process is not clean, it may lead to tooth bone or root residue, so the formation of bumps. If there are obvious symptoms, it is recommended to consult a doctor for examination and symptomatic treatment, so as not to affect the later life.