Hi, thanks for writing to HCM. Propably you could have suffered a soft tissue hematoma (blood clot) due to blunt injury. Its always necessary to have an abdominal ultrasound examination to rule out any visceral injury. The general treatment guidelines are as follows - * Take adequate rest and don t involve in activities that causes pain * Ice packing over the painful area once in 2 hours * apply a compression bandage over the swollen area * use analgesics like advil or aleve to reduce the pain and inflammation If your symptoms are not resolving with the above measures, consult your family physician for further management. Hope this information is helpful. Good day