Colds generally do not cause toothache, toothache may be due to deep caries or pulpitis, apical periodontitis; cold-induced stomach pain, consider a gastrointestinal cold. 1. Toothache: (1) deep caries or pulpitis: mainly due to dental caries affecting the pulp tissue, not related to colds, may be due to the usual lack of attention to oral hygiene, or due to unreasonable brushing habits. (2) Periapical inflammation: usually comes from dental caries and has nothing to do with colds. Some patients suffer from periapical inflammation caused by periodontal disease. (2) Tummy ache: If the cold gradually worsens, it may cause gastrointestinal cold, which may cause abdominal pain, diarrhea, and in severe cases, appetite. Tummy ache caused by cold may also be caused by mesenteric lymphadenitis. For stomachache and toothache caused by cold, it is recommended to go to the hospital in time, and diagnose and analyze through oral examination, routine stool examination and routine blood examination to understand the cause of the disease and then target treatment.