Hello I am a male 24 years old. I have a swelling under my left chest which is soft and doesnt hurt at touch.I dont have a fever,just a pain and pressure sensation which happens just few times a day and usually last only for few minutes or even seconds.I noticed the swelling 3-4 days ago.I also started some training for abdominal muscels recently,so I am not sure if it has to do something with the exercise.Thank you for your help
Thanks for your question on Chat Doctor. I can understand your concern. Since you have recently started exercise for abdominal muscles, this left chest swelling is mostly due to musculoskeletal cause. Apply warm water pad on affected areas. Avoid exercise for few days. Take anti-inflammatory Chat Doctor.  Avoid movements like bending forward. Do all these for 4-5 days. You will mostly improve. If not improving then get done chest x-ray and ultrasound examination of local part to rule identify the cause for this. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.