Pain experienced under the leftbreast during pregnancy may be caused by pressure from the top of the uterus as it grows, or if the baby is kicking or punching the expectant mother. The pain can be worse when leaning forward. The left lung, breast, and kidney are also present, although they sit higher in the body than the right one. When you experience painunder the leftbreast, it can have a variety of causes — some simple, some serious. Feeling PainUnder Your LeftBreast? Here's What Your Body's Trying to Tell You — Well+Good. How to treat painunder your leftbreast. The right treatment for painunder your leftbreast ultimately depends on the cause. If you suspect that you’re dealing with a muscle issue, over-the-counter medications like acetaminophen and ibuprofen may help with the pain, Dr. Ni says. "Painunder a breast can have a variety of causes, ranging from infection to injury to tumors," says April Smith-Gonzalez, DO, an osteopathic family medicine… Is Painunderleftbreast your major concern? Solve your problem quick & easy with online consultation.Having painunderleft side breast. No lump, no fever . Only breastpain occurs which radiates to back. Painunder the leftbreast refers to discomfort or soreness experienced in the area beneath the leftbreast. The pain may vary in intensity and can be sharp, dull, or throbbing. Understanding and managing painunder the leftbreast involves recognizing the potential causes, knowing when to seek medical attention, and following through with recommended diagnostics and treatment. Here are the crucial points to remember "Painunder the leftbreast can be caused by various reasons, including issues with or related to the breast or from another cause entirely like heart, lung, skin, muscle, or digestive issues," says Amy Wetter, MD, a board-certified ob-gyn at Pediatrix Medical Group in Atlanta. Is the painunder your leftbreast due to a heart attack? From your human anatomy classes, the heart is located slightly to the left of the upper body’s midline. Painunder the leftbreast could be a heart-related complication. Painunder the leftbreast could be a sign of serious complications such as heart attack or cancer.If the painunder the leftbreast is accompanied by blood in the sputum, shortness of breath, nausea, vomiting, or loss of appetite, you should definitely see a doctor. My pains have been happening since the 7th grade when i was 12-13 and how it starts is there will be this dull painunder my leftbreast and if i happen to breathe at the wrong time it gets ten times worse. Why You Might Have PainUnder Your LeftBreast. The photo of heart is on the woman's body, Severe heartache, Having heart attack or Painful cramps, Heart disease, Pressing on chest with painful expression. I feel it right under my leftbreast and sometimes a but of it right behind like on my back where that pointy shoulder blade thingy iss... is this my heart???? it's very very sharp. i must add that it only happens when im sitting and leaning back or...