Dolor debajo del seno derecho: causas, síntomas y tratamiento

Feeling a strange ache or sharp twinge under your right breast and wondering what on earth is going on?
You’re not alone. Many people experience pain under the right breast or right-side chest pain at some
point, and it can range from mildly annoying to “do I need the ER right now?” scary. The good news:
most causes are not life-threatening. The important thing is knowing when it’s likely something minor
(like a pulled muscle) and when it could be a sign of a more serious problem that needs urgent care.

In this guide, we’ll walk through the most common causes of pain under the right breast, typical symptoms
to look for, how doctors figure out what’s going on, and which treatments can help. We’ll also talk about
when to stop Googling and call your doctor or emergency services immediately. At the end, you’ll find a
section with real-life style experiences to help you relate this information to everyday life.

What does pain under the right breast feel like?

“Pain under the right breast” isn’t one exact feeling. It’s a location. The discomfort can show up in many ways:

• A dull, nagging ache under the right side of the chest or ribcage
• Sharp, stabbing pain that worsens when you take a deep breath, twist, or cough
• Burning or pressure that feels more like heartburn moving up into the chest or throat
• Cramping or “squeezing” pain after eating, especially after heavy or fatty meals
• Pain that spreads to the back, shoulder blade, neck, or upper abdomen

How the pain behaves (constant vs. comes and goes, triggered by movement vs. meals, relieved by antacids vs. rest)
gives important clues about the underlying cause.

Common causes of pain under the right breast

1. Muscle strain and chest wall pain

The simplest explanation is often the right one: you may have strained a muscle in your chest or upper abdomen.
The large chest muscles (the pectorals) and the muscles between the ribs can become sore from:

• Lifting something heavy or awkward
• Doing a new workout (hello, push-ups and rowing machines)
• Repetitive motions at work or during sports
• Prolonged coughing fits from a cold or allergies

This kind of pain usually:

• Is localized – you can often point to a tender spot
• Gets worse with movement, deep breathing, or pressing on the area
• Improves with rest, ice/heat, and over-the-counter pain relievers

Another chest wall cause is costochondritis, an inflammation of the cartilage that connects your ribs
to your breastbone. It can cause sharp pain on either side of the chest and may feel worse when you take a deep breath,
move, or lie in certain positions.

2. Gallbladder problems (gallstones and cholecystitis)

The gallbladder sits under the liver in the upper right abdomen. When gallstones block the bile ducts or when the
gallbladder becomes inflamed (cholecystitis), pain can radiate up and feel like it’s under the right breast or right ribs.

Typical gallbladder-related pain:

• Starts in the upper right abdomen or under the right ribs and can move to the back or right shoulder
• Often comes on suddenly, especially after a heavy or fatty meal
• May be intense, cramping, or squeezing and last from minutes to hours
• Can be accompanied by nausea, vomiting, or bloating

Gallbladder attacks tend to repeat if the underlying problem isn’t treated. Inflammation or infection can become
serious, so persistent or severe pain in this area should always be checked by a doctor.

3. Digestive causes: heartburn, reflux, gas, and ulcers

The digestive system runs right behind your breastbone and ribs, so it’s no surprise that gastrointestinal problems
can feel like pain under the right breast.

Gastroesophageal reflux disease (GERD) or chronic heartburn is one of the most common reasons for
chest discomfort. Stomach acid flowing back into the esophagus can cause:

• Burning pain or pressure behind the breastbone or under the ribs
• Symptoms that worsen after eating, lying down, or bending over
• A sour taste in the mouth, belching, or food coming back up

Peptic ulcers (sores in the stomach or upper intestine) and gas or bloating can also cause
discomfort in the upper right abdomen that sometimes feels like it’s under the right breast. This pain may improve or
worsen with food and can be accompanied by nausea or feeling overly full.

4. Lung issues: pleurisy, pneumonia, and more

The lungs and their lining (the pleura) extend high into the chest. If the lining becomes inflamed, as in
pleurisy, or if there’s an infection like pneumonia, you might notice sharp, stabbing pain
on one side of the chest, including under the right breast.

Clues that lung problems may be behind your pain include:

• Pain that gets worse when you take a deep breath, cough, or sneeze
• Cough (with or without mucus)
• Shortness of breath or feeling like you can’t fully expand your lungs
• Fever, chills, or fatigue

A rare but serious cause is a pulmonary embolism (a blood clot in the lung). That typically causes sudden,
sharp chest pain, shortness of breath, rapid heartbeat, and sometimes coughing up blood. This is an emergency.

5. Liver conditions

The liver sits under the right side of the ribcage. When it becomes swollen or inflamed – due to conditions like
hepatitis, fatty liver disease, or congestion from heart problems – it can cause fullness, discomfort, or pain under
the right ribs that may be felt as pain under the right breast.

Other signs might include:

• Yellowing of the skin or eyes (jaundice)
• Dark urine and light-colored stools
• Persistent fatigue or loss of appetite

Liver-related pain under the right breast usually requires medical evaluation, lab tests, and imaging to identify the cause.

6. Breast-related causes

Sometimes, what feels like pain “under” the right breast is actually coming from the breast tissue itself. Causes might include:

• Cyclical breast tenderness related to hormonal changes
• Breast cysts or benign lumps
• Breast infection (mastitis), often in people who are breastfeeding
• Irritation from an ill-fitting bra or sports bra

Breast pain is rarely a sign of breast cancer by itself, but new, persistent, or one-sided breast pain should still be
discussed with a healthcare professional, especially if it’s associated with a lump, skin changes, or nipple discharge.

7. Shingles and nerve pain

Shingles (herpes zoster) is a viral infection that affects nerves and causes a painful, blistering rash.
When it affects the nerves under the right ribs, the first sign may be burning or stabbing pain under the right breast
or around the side of the chest. The rash usually follows along a band on one side of the body a few days later.

Nerve pain from shingles can be intense, and some people continue to have pain even after the rash heals. Early antiviral
treatment can help shorten the duration and reduce complications, so prompt medical attention is important.

8. Stress, anxiety, and panic attacks

Stress and anxiety can cause very real physical symptoms. When the body’s “fight or flight” system ramps up, muscles tense,
breathing changes, and you may feel:

• Chest tightness or pain on either side, including under the right breast
• Fast heartbeat, sweating, shaking
• Shortness of breath or a feeling of “air hunger”
• Dizziness or a sense of impending doom (common in panic attacks)

Even if anxiety is contributing, new or severe chest pain still deserves medical evaluation, because it’s impossible to be
sure what’s happening without a proper exam.

Red flag symptoms: when to seek emergency care

While many causes of pain under the right breast are relatively minor, some are serious or even life-threatening.
Call emergency services or go to the nearest emergency department right away if pain under your right breast or
right-sided chest pain is:

• Sudden, severe, or crushing, especially if it spreads to your jaw, neck, arm, or back
• Associated with shortness of breath, trouble breathing, or feeling like you can’t get enough air
• Accompanied by sweating, nausea, or lightheadedness
• Combined with coughing up blood or sudden, unexplained difficulty breathing
• Associated with vomiting blood, black or tarry stools, or severe abdominal pain
• Present with high fever, chills, or confusion

If you’re ever unsure, it’s safer to get checked. Chest and upper abdominal pain should not be ignored.

How doctors diagnose pain under the right breast

Your healthcare provider will start with your story. Expect questions like:

• When did the pain start?
• Where exactly is it located?
• What makes it better or worse (movement, meals, breathing, lying down)?
• Do you have other symptoms, like fever, nausea, cough, shortness of breath, or weight loss?
• What medications do you take, and what medical conditions do you have?

A physical exam may include pressing on the chest and abdomen, listening to your heart and lungs, and checking for
tenderness, swelling, or rash. Depending on what your provider suspects, they might order:

• Blood tests (to look for infection, liver or gallbladder problems, heart markers, etc.)
• Chest X-ray or CT scan to evaluate lungs and chest structures
• Ultrasound of the abdomen to check the liver, gallbladder, and bile ducts
• Electrocardiogram (ECG/EKG) to check heart rhythm and possible heart strain
• Endoscopy if there is concern for ulcers or severe reflux

The goal is to rule out urgent conditions first, then narrow down the most likely cause and treatment plan.

Treatment options for pain under the right breast

Treatment depends entirely on the cause. Two people can have pain in the same spot for very different reasons and need
totally different treatments, so avoid self-diagnosing based solely on location.

Home care for mild, clearly musculoskeletal pain

If your provider has confirmed that your pain is due to muscle strain or mild chest wall inflammation, they may recommend:

• Rest and avoiding activities that aggravate the pain
• Ice packs (for the first 48 hours) or heat packs (after the acute phase) to relax muscles
• Over-the-counter pain relievers, such as acetaminophen or nonsteroidal anti-inflammatory drugs (NSAIDs), if appropriate for you
• Gentle stretching and posture work once the acute pain improves
• Adjusting bras or sports bras for better support

Always follow dosing instructions, and talk to your doctor or pharmacist if you have kidney disease, liver disease,
stomach ulcers, or are on blood thinners before taking NSAIDs.

Treatment for gallbladder and digestive issues

For gallbladder disease, options may include:

• Pain control and a low-fat diet to reduce symptoms
• Medications in certain cases
• Surgery to remove the gallbladder if attacks are frequent or complications develop

For reflux and other digestive causes, your provider might suggest:

• Antacids or medications that reduce stomach acid
• Avoiding large meals, lying down right after eating, or trigger foods (fatty, spicy, or acidic foods, caffeine, alcohol)
• Weight management, if appropriate
• Elevating the head of the bed to reduce nighttime reflux

Treatment for lung, liver, or other internal causes

If an infection like pneumonia is causing the pain, treatment may involve antibiotics, rest, and sometimes inhaled medications.
Pleurisy may require medicines to reduce inflammation and pain. A pulmonary embolism or complicated liver disease usually
requires hospital-level care.

Shingles is treated with antiviral medications (ideally started early), along with pain control. Liver problems often require
lifestyle changes, medication, or monitoring by a specialist.

Everyday steps to reduce and prevent pain under the right breast

While you can’t prevent every cause of right-sided chest pain, these habits may lower your risk or help reduce discomfort:

• Maintain a healthy weight and balanced diet to support liver and gallbladder health
• Limit fatty, fried, and very large meals that can trigger gallbladder and reflux symptoms
• Avoid smoking and vaping, which increase lung and heart risks
• Wear properly fitting bras and sports bras that provide good support without digging into the ribs
• Warm up before exercise and use proper lifting techniques to protect chest and core muscles
• Manage stress with techniques like deep breathing, yoga, walking, or mindfulness
• Stay up to date with vaccines recommended by your healthcare provider, including the shingles and pneumonia vaccines when appropriate

Most importantly, listen to your body. If pain under your right breast is new, severe, persistent, or just doesn’t feel right,
get it checked out.

Real-life style experiences with pain under the right breast

To make all this information more relatable, imagine a few everyday scenarios. These are not real patients, but composite
examples based on common patterns doctors see in the clinic.

“I thought it was my bra” – chest wall strain in a busy parent

Elena is 35, a mom of two, and spends half her day lifting toddlers, laundry baskets, and grocery bags. One evening,
she notices a nagging ache just under her right breast. It’s worse when she twists to buckle her child into the car seat
or when she takes a deep breath. She blames her bra at first and tries adjusting the straps, but the soreness is still
there the next day.

At urgent care, her provider asks her to point to where it hurts and gently presses along her ribs and chest muscles.
The pain spikes when they press a particular spot between two ribs. Her heart and lungs sound normal, and her vital signs
are stable. The provider explains that it’s likely a muscle strain or mild chest wall inflammation and recommends rest,
NSAIDs (which are safe for her to take), and heat. A week later, the pain has almost completely resolved, and Elena has
become a little more strategic about how she lifts heavy things.

“I thought it was gas” – gallbladder attacks in someone who loves fried food

Marcus, 42, jokes that his favorite food group is “fried.” One Saturday night, after a big meal of fried chicken and fries,
he develops a sharp, cramping pain in the upper right part of his abdomen that creeps up under his right breast. At first he
assumes it’s gas and tries walking it off. But the pain keeps building, radiating to his back and right shoulder. He feels
nauseated and can’t get comfortable no matter how he lies.

In the emergency department, an ultrasound shows gallstones and signs that his gallbladder is inflamed. He’s treated with
IV fluids and pain medications, and later he schedules surgery to remove his gallbladder. Looking back, he realizes he had
milder “mystery” attacks after fatty meals for months that he ignored. After surgery and some diet changes, the attacks stop.

“I thought I just pulled something” – lung infection in a runner

Dana is a 29-year-old runner who recently got over what she thought was a bad cold. She has a lingering cough, but one day
she notices sharp pain under her right breast every time she takes a deep breath. She assumes she strained a muscle while
coughing but also feels unusually tired and a little feverish. When she tries to jog, she has to stop because the pain and
shortness of breath are too much.

At her doctor’s office, a chest exam and X-ray show a localized area of pneumonia in her right lung. The lining around the
lung is inflamed, causing pleuritic pain – that sharp, stabbing sensation when breathing in. With antibiotics, rest, and
time, her symptoms improve dramatically. She learns that “I must have pulled a muscle” isn’t always the safest assumption
when chest pain comes with cough, fever, and shortness of breath.

“I was sure it was my heart” – anxiety, reflux, and mixed causes

Olivia, 50, goes to the ER several times in a year for chest pain under her right breast. The pain sometimes burns, sometimes
feels tight, and it often hits when she’s under a lot of stress at work. After each visit, tests for heart attack and blood
clots are negative. Eventually, her primary care provider discovers a combination of issues: significant acid reflux,
muscle tension in her chest and shoulders, and untreated anxiety.

With a combination of reflux medications, lifestyle changes (like eating smaller meals and cutting back on late-night snacks),
and counseling to help manage anxiety, her symptoms noticeably improve. Most importantly, she gets a clear plan for when she
really does need emergency care and when she can safely follow up with her doctor instead of panicking every time she feels
a twinge.

These experiences highlight an important point: pain under the right breast can have many causes, and they often overlap.
You can’t always tell what’s going on just by guessing. Getting medical advice helps you avoid both overreacting and
underreacting and that’s key to protecting your health.

Conclusion

Pain under the right breast is a symptom, not a diagnosis. It might come from a strained muscle, irritated cartilage,
digestive issues like reflux or gallbladder disease, lung infections, liver problems, or even nerve and skin conditions
like shingles. Most of the time, the cause is not immediately life-threatening, but some possibilities are serious and
require urgent treatment.

Pay attention to how the pain feels, what triggers it, and what other symptoms you notice. Use that information to guide a
conversation with your healthcare provider, who can examine you and order the right tests. And remember: if pain under your
right breast is severe, sudden, or paired with trouble breathing, chest pressure, or extreme illness, don’t wait seek
emergency care right away.