If a patient bleeds seven days after tonsil surgery, it may be due to food stimulation, cold, strenuous activity, etc., as follows: 1. Food stimulation: Some patients may eat food that is too rough, or eat spicy, stimulating, and food that easily causes fire, which may easily lead to damage to the pseudomembrane of the wound, resulting in exposure of the trauma, which will further lead to bleeding. 2. Cold: Some patients may also 3.Strenuous activities: Some patients may have too strenuous activities or too heavy physical labor, which may also lead to bleeding, and if the amount of bleeding is large, it is necessary to take timely hemostatic treatment. After tonsil surgery, a pseudomembrane will gradually form on both sides of the tonsil surgical wound, which will generally fall off in 7-14 days, and there is a risk of bleeding during this period.