Tonsillitis may cause colds, the following clinical analysis: First, tonsillitis is mostly caused by viral and bacterial infections induced by the inflammation of the tonsils will induce the patient to develop viral and bacterial infections throughout the pharyngeal and pharyngeal cavities, due to the nasal cavity belongs to the upper respiratory tract, the pharynx also belongs to the upper respiratory tract, and the entire upper respiratory tract is interconnected, so the pharynx viral and bacterial infections can be invasive through nasopharynx invade the patient’s nasal cavity, inducing the patient to develop acute rhinitis, also known as colds and other related diseases. This is only a possibility, not everyone with tonsillitis will have a cold. Second, tonsillitis during the inflammation of the patient will appear resistance decline, body immunity decline, eating difficulties, body nutritional deficiencies and other related conditions, the outside world of viruses, bacteria can invade the nasal cavity, inducing patients to appear acute rhinitis, especially patients with resistance to decline in the process of indirectly caused by patients with acute rhinitis manifestations of tonsillitis may induce the patient to appear colds.