[Primary hemostatic disorders caused by beta-lactams. Apropos of a postoperative hemorrhagic complication during treatment with cephalexin].

The authors report a case of haemorrhage due to cephalexin therapy. The bleeding started after an orthopedic operation in a patient without renal failure, receiving 3 g/day of cephalexin. Platelet function was very abnormal at the time of the haemorrhage with a bleeding time of over 20 minutes, which returned to normal when treatment was stopped. This case seems to be similar to other reports of haemorrhages during treatment with other beta-lactams.