<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have lower left side abdominal bruising that seems to be advancing around towards the front of the stomach. No exterior trauma was experienced but I did experience a lot of pain when coughing in my left lower back several days ago and still have pain when coughing. Other than that I fell ok but have some swelling on the left side of the abdomen. I am concerned about internal bleeding, again I fell ok otherwise.  <response>: Hi. Thanks for your query and an elucidated history... This is obviously the bleeding due to muscle sprain during violet coughing in the left lower abdomen. Once the bleeding occurs in the loose areolar tissues which envelop around the muscles, being loose so that the muscles can easily move over each other without any pain. I would advise you the following::First get the blood tested for the routine CBC and bleeding time, clotting time, prothrombin time, platelet count, blood group, liver function tests.IT is always better to get the bleeding profile tested as this is a very rare phenomenon. I hope you are not taking any medicines for heart ailments like Dispirit or blood thinning agents Get color Doppler examination and contrast enhanced CT scan or MRI Angiography done, and get the artery ligated if found so. Take cough suppressants, laxatives too. Vitamin K injections and oral calcium with vitamin D. 