Drainage tube

The utility model relates to a drainage tube, in particular to a drainage tube applied to a both-side thyroid operation, and belongs to the technical field of medical instruments. The drainage tube overcomes the defects that in the prior art, the drainage tube of the both-side thyroid operation is complex to operate, and a patient is prone to being hurt. The drainage tube mainly comprises a plastic cavity body with a solid metal head arranged at the front end, the tail end of the cavity body are communicated with two branch pipes with the opened tail ends, and air holes are evenly distributed in the branch pipes. The diameter of each branch pipe is smaller than or equal to that of the cavity body. The drainage tube is mainly applied to drainage of accumulated blood in a wound cavity in the both-side thyroid operation.