What causes sharp pain on lower left side of shoulder during deep breath?
Patient: i have a Sharp pain on the lower left side of my right shoulder blade when i breathe deep or move or sit certain ways and even hurts a little bit when i walk..its been like this since sunday night and is getting worse but i have not had a cold or been sick either, but feel like im short of breathe. Doctor: Hello,  The sharp pin on taking a deep breath can be due to an injury to the intercostal muscles or an infection like pleuritis. Proper rest and anti-inflammatory pain killers can help.   Hope I have answered your query. Let me know if I can assist you further.  Regards, Dr. Praveen Tayal, Orthopaedic Surgeon