Hello. Thanks for using this forum. Well the diagnosis of incisional hernia on an ultrasound can be quite challenging and difficult one to make. It depends on various factors ranging from size of hernia to the experience of the ultrasonographist. You should look out for symptoms such as swelling in the line of incision while standing up, while coughing or while picking up any heavy items. If any swelling is seen, its a sign for incisional hernia. Sometimes such hernias are also hidden which means they dont reveal to the naked eye. As for the pain in the lower left abdomen, this pain could also be related to the c-section operation specially the suture line due to the fibrosis. Also get a urine exam done to rule out any Urinary tract infection and a consultation with a gynecologist would certainly help. Kindly feel free to ask if you have any further queries. Regards.