What cause bilarteral bruises on my daughters knee?
Patient: my 13 year old daughter has bilarteral bruises on her that came out of know where she doesnst remember hiting her knees, but she is a competative swimmer and that is the only activity she is doing at this time, she has no swelling ,redness or pain in the area should I take her to ER. Doctor: Hello,  Bilateral bruises on the knees without any history of injury can be due to low platelet count or a bleeding disorder. A few blood tests are needed to rule out these causes.   Hope I have answered your query. Let me know if I can assist you further.    Regards, Dr. Praveen Tayal,  Orthopaedic Surgeon