<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am a weightlifter and I recently did vertical leg presses. After which, I noticed a little soreness and pain in my lower left rib cage. I went to an urgent care and they diagnosed it as costochondritis. The doctor said it was an inflammed cartilage due to the pressure of the weights my legsknees were pressed against my rib cage.. I was wondering if that s true, or if it could be a problem with my spleen or maybe a hernia.  <response>: Hello, Thank you for contacting us at Ask a Doctor. I will try to answer your questions the best of my ability. I have reviewed your questions, and it is certainly possible that you have a so-called Costco Chat Doctor. The other possibility would be a simple intercostal muscle strain in the same region. If you not have any swelling present then this is very unlikely to be something like a hernia. Also, spleen problems do not present in this way, and so this would also be very unlikely. I think at this time it will be sensible to avoid any lifting. You can certainly take over-the-counter remedies such as ibuprofen or Tylenol if it is particularly painful. A local application of ice in the form of a bag of crushed ice applied for about 10 min. 4 or 5 times a day, would certainly help. I would continue with this approach for the next 5-7 days. If after this time, your symptoms are worse, or you have developed any new symptoms I would certainly consult with your primary care physician. At this time I do not see the need for further tests or x-rays, et cetera. I feel confident that this condition will settle in due course. I hope this information is helpful. Please dont hesitate to contact me again if you have any further questions. Best wishes, A 