Pain Under Left Breast


You’ve for sure felt the pain under left breast for more than once. This can be caused by numerous reasons, and only a few of them can mean serious conditions. But even if so, you should be aware of some of the common causes and what is there to do about it. It can include from muscle and rib injuries to stomach gas and heart attack. Even if you’ve experienced stabbing pain and might be worried about it, we will try to list some of the possible causes which can be solved with ease.

Digestive Tract

There are several conditions which are frequent in people, but pass quickly or they are not a first thing to think of when you have pain in the chest area.

  • Stomach Gas Accumulation. This is one of the most common cause of left side pain, right bellow the breast region. It is the area where the stomach is located and when it fills with gas, it affects the lining of the stomach which can result in the stabbing, excruciating pain which lasts about a few seconds and subsides. It can come in periods until the gas leaves the digestive tract. It affects the nerves also, which react to the pressure.
  • Gastritis. It is a condition which represents as a stomach lining inflammation. It is usually caused by some type of bacteria such as Helicobacter pylori and other bacteria and viruses. It can also be associated with bile reflux and pernicious anemia due to vitamin B12 deficiency. It forms a state of inflammation with lining erosion which can be really uncomfortable and painful.
  • Heart Burn. It is the event of a stomach acid reflux up to the esophagus which causes the irritation of the mucus lining and it causes stabbing pain and uncomfortable burning sensation bellow left breast. It is called heartburn because of its common misconception for the heart attack.
  • Hiatus Hernia. This is a condition which happens when the organ from the abdominal area goes through the hole in a diaphragm which can cause pain, burning sensation after a meal, difficulty in digestion and also in breathing. This can be a serious condition, depending on the incarceration extent. The constriction between the diaphragm walls can give pressure to the stomach or intestine and cause pain. It can lead to more severe symptoms like ileus or constipation.

Chest Issues

  • Rib Injury. If you’ve suffered from chest trauma like rib fracture or inflammation affecting the area bellow the breast on the left side of the chest, it can result in pain, especially when breathing, where it can get worse when inhaling. There are also some joint conditions which can affect sternum and sternoclavicular joint such as costochondritis. It can be followed up with pain as well.
  • Chest Muscle And Soft Tissue Inflammation. If you are experiencing pain, maybe not just on the left side, which can be tender to touch and swollen as well, it can be due to some musculoskeletal inflammation.
  • Chest Injury. These type of injuries are common in car accidents where a person can bump into a steering wheel which can also lead to a rib This can make you breathless for a few minutes due to a pressure punch and cause some bruising later on.
  • Precordial Catch Syndrome (PCS). This is a sudden chest pain which can appear and last for about 30 seconds up to a few minutes. It is also called Texidor’s twinge, who was one of the first people who described this syndrome. It occurs as if you’re having a bubble inside your chest and after it “bursts”, the pain goes away. It is considered as a localized cramp muscle, where it spasms for a few seconds. It subsides by itself.

Cardiovascular Problems

  • Heart Attack. body-116585_1280It can be associated with a heart attack, but is is not that likely to happen. A heart attack causes the pain under the sternum area and not on the left side of the chest, bellow the breast. It is accompanied with tachycardia, difficulty in breathing, cold sweat, pain which can radiate towards your shoulder, arm and into your left hand. It is a severe condition which needs an urgent medical attention.
  • Pericarditis. It can be a possible cause as well where it occurs when your pericardial sac gets inflamed. It causes the inflammation fluid to build up between the layers, causing friction and stabbing pain, especially when breathing. It helps when you sit and bend forward. It does not radiate towards left hand and it hurt by movement, so you will know how to differentiate it.

Other Problems

  • Cyst. Cysts may appear inside the chest area but it doesn’t cause such severe pain. It can be felt like pain when moving or if it grows bigger and compresses the other organs. It is best to advise with a doctor for the right measures to be taken.
  • Stress. This is common in people who are sensitive and often get into stressful situations. It can be pretty painful with a stabbing sensation bellow the breast area due to a nerve inflammation. It does not end up in certain conditions and it subsides by itself when you relax and calm down.

Possible Treatments

Depending on a cause, the treatment can be quite different. Some of them don’t need any of the treatments, and will subside on its own. On the other hand, some conditions are considered serious and need medical attention.

  • Changing Your Lifestyle. You should decrease the possibility of stress and stressful situations. Try to relax and pamper yourself once in a while. It will be good for you and you will take the worry of your mind. You can include some relaxation tools like yoga or meditation which are proven to be very helpful.
  • Change Your Diet. If you’re having digestive problems and you eat bad food, you should consider changing it for your own sake. It can make you gassy, cause gastritis or heartburn. You should avoid alcohol, carbs, sugary and carbonated juices, fat food and fast food as well. Anything fried should not be in your menu. It can also lead to heavy consequences if you suffer from a hernia or ileus.
  • Non-Steroidal Anti-Inflammatory If you’re having excessive pain and it lasts quite some time, you can try with over-the-counter medications to see if it will ease your pain. If not, you should consider going to the doctor’s office.
  • Cyst Removal. If you’re suffering from the cyst and it is causing a severe pain, you should consult with your doctor. You may have to go to surgery for a cyst removal.
  • Antibiotics. If you are having a condition which is caused by bacteria, you will need to take some tests to identify the type of bacteria and to see which drug is useful for the actual bacteria. A doctor will prescribe you an antibiotic which you will have to intake until you complete the prescribed therapy period. It is important to stick with a doctor’s treatment due to a risk of bacteria resistance development. This can occur if you stop taking the drug and the bacteria get immunity on the specific drug which will no longer affect the pathogen. A doctor will have to find another medicine which might not affect as quite as good as the previous one. It is important not to take an antibiotic by your own as well, as you will not know which one works best for your condition.


  1. I ben Fill paind under my lefth breast like next to my ribs, is not every day is problaly like 2 to 3 times a not like havy pain .is like little bit a burn or cramps

    • This may be related to your heart, lungs, or stomach. You will find benefit in speaking with a medical professional. Make an appointment at this time. You may find benefit in speaking with an emergency medical professional. Best of luck, Guadalupe!

  2. I have a sharp pain under my breast and right next to my ribs on the left side. They can last for up to an hour. The left side of my stomach feels swollen and hurts to touch. Idk what it is or what to do

    • You will want to speak with a medical professional, as they will be able to diagnose and treat any condition. However, it is possible that these pains may be signs of a lifestyle problem. Whether or not your lifestyle is healthy, you would be best served by monitoring your symptoms at this time. This will make it easier for you to properly address any questions that your medical professional may have. Best of luck, Jaden!

  3. Hi i sometimes get a pain under my left breast near my rib cage what causes that mybreast exam was good so what do you think it is and what can i take

    • Continue to monitor the symptoms that you are experiencing. If they continue for another three days, then make an appointment with a medical professional. Take note of your symptoms so you can better address the questions that your doctor may ask. Best of luck, Elizabeth!

    • Unless you can think of a reason why you are experiencing the pain–such as suddenly working out more or having a bad cough recently–, then you should go to your doctor. There are many reasons why this pain could happen, so it would be best to get thoroughly checked out by your doctor to make sure that it isn’t anything serious.

  4. Hello…
    i’m 38 years old. Recently I woke up with my left armpit swollen. It lasted for 2-3 days. The swelling went away but I since then I’ve been having a painful discomfort underneath my left breast that does not go away. What can it be?

    • There are a number of things that can cause this, so it is best to go to your doctor to have diagnostic testing done. Your doctor will be able to determine what is going on and decide on the best course of treatment. Good luck, Lizette V.!

    • It could be just a muscle strain, or it could be caused by a cold or other infection. Without other symptoms, it would be difficult to narrow down the exact cause online. Have you started any new exercise regimes like running, chopping wood or carrying heavy items? If so, it could be a strained muscle. It could also be related to the type of bra you use. If your bra is too tight, it can cause pain. If you cannot find an exact cause, you can always go to your doctor to get checked out.

  5. I have a lumpish sort of underneath my left side stomach area, almost under left breast area. It feels swollen and tender to touch, what should I do?

    • You should go to the doctor to get checked out. It could be a cyst or it could be a malignancy of some sort. The best bet is to go to your doctor to be professionally diagnosed.

  6. Recently i had a panic but they dont occur no more and when the ambulance came they said my pain was due to muscle tention so i never worry bout it only 16 and i never had health problems before untill i smoked marijuana and i only have pain when I feel tired ..Do you think this is anxiety ?

    • It could be psychosomatic in nature, yes. Marijuana can increase anxiety, so this could be fueling your problems. It would probably be a good idea to stop using marijuana since it may be increasing your anxiety and could increase the chances of having a panic attack.

  7. Okay I feel embarrassed doing this. I’m only 17 and I think recently this past week, I had mild breast pain in one breast,it will last for a few seconds, and will move to the other. Sometimes it will last for a few minutes. When I sleep, they don’t hurt. Usually happens during the days and sometimes night. I recently had sex and when the guy ‘came’ or had an orgasm (not sure how to put it), he would stop and ‘came’ on my shorts or somewhere else. I know for sure I’m not pregnant. How long will the breast pain last? Can I experienfe breast pain during puberty? I’m only 17 and Im scared to tell my mom that I had (sex only lasted for 2 minutes). What should I do and is there any home remedies that can help relieve the pain? I have not been to the doctor about it.

    • It is probably not related to sex unless you are pregnant. There are muscles in your chest as well, so working out more often or other activities like moving boxes can cause chest pain. It may also be caused by something else though, so you may want to go to the doctor anyway. Unless you are pregnant, the chest pain is not related to having sex, so there is no reason that you need to mention that to your mom–although you may want to tell your doctor so that you can have a pelvic exam, which should be done regularly if you are sexually active.

  8. I have pain thats not going away under left breast. It hurts even more with movement. It feels like a have a rock in my chest.what do i do

    • If you have a lump in your chest like that feels like a rock and causes you pain, then you should speak with a doctor as soon as you are able. Make an appointment as soon as you can. Continue to monitor your experiences until your appointment. This will give you better information to answer your doctor’s questions with. It would be unwise to delay. Best of luck,Yvonne!

    • Go to your doctor to get checked out. If you are just feeling a tingling sensation, it could be something as simple as overly dry skin. If you are experiencing other symptoms, it is important for you to go to your doctor for a thorough exam. Good luck and stay safe, Val Jarrett!

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