Judge small wounds have no glass, there is no clear intuitive way to look at the cause of the injury, the depth of the wound, and improve the X-ray, etc., as follows: 1, the cause of the injury: first of all, we must see whether it is caused by glass objects accidentally injured, stabbed, etc., if it is obvious that there are small glass stabbing traces, it is very likely that there will be a small glass. 2, the depth of the wound: we must look at the depth of the wound If it is very shallow, generally can be visualized with the naked eye, while the deeper routine touch is not felt, if necessary, need to clear or expand the trauma to explore, to be able to know. 3, perfect X-ray: some difficult to determine and must be removed, may need to perfect X-ray to see if there is no foreign body residue. It should be pointed out that there are some very small glass can not be taken out, if there is no infection, stay in the body is generally unaffected, can live peacefully with the body.