“Shoemaker’s chest,” medically known as Pectus Excavatum, is a congenital chest deformity characterized by the inward sinking of the breastbone, giving the chest a sunken appearance similar to a “shoemaker’s hollow.” The condition is not just a cosmetic issue; in severe cases, it can affect breathing and heart function, and it may also cause psychological stress related to self-confidence and body image, especially during adolescence.In this Dailly Medical Guide article, we will discuss the causes of Pectus Excavatum, its symptoms, possible complications, its impact on breathing and mental health, as well as both surgical and non-surgical treatment options. This comprehensive overview is designed to present all the information in a clear, simple way to help you understand the condition and make the right decision regarding treatment.
Pectus Excavatum, also known as “shoemaker’s chest,” is a congenital deformity of the chest in which the breastbone sinks inward, giving the chest a hollowed appearance similar to a “shoemaker’s hollow.”
• Clinical examination:
The doctor observes the shape of the chest and the depth of the indentation.
• X-ray or CT scan:
Used to determine the impact of the indentation on the lungs and heart.
• Haller Index:
A medical measurement that helps assess the severity of the deformity.
Yes, the pain is most noticeable during the first few weeks after surgery.
Painkillers and breathing exercises help ease the discomfort.
The pain gradually decreases as complete healing occurs.
The condition is usually persistent if left untreated.
Early intervention is important to prevent breathing or heart issues and to reduce psychological effects.
Yes, especially during adolescence.
It may cause embarrassment or reduced self-confidence.
Surgical treatment or corrective exercises can improve emotional well-being and overall appearance.
Pectus Excavatum develops gradually over time, and its severity varies from person to person. The following stages describe how it progresses based on age, indentation depth, and impact on breathing and the heart:
The indentation is mild or may not be noticeable except when lying down.
Children usually do not experience breathing problems.
Rib cartilage growth is unstable and may improve or worsen over time.
Typically requires no treatment—just regular monitoring.
The indentation becomes more noticeable as the chest grows.
Appears clearly when standing or after physical activity.
Mild symptoms may appear, such as faster breathing or quick fatigue.
Doctors may recommend physical therapy or a Vacuum Bell device in some cases.
During this period, the ribcage grows rapidly and the indentation may deepen.
Common symptoms:
Mild palpitations
Shortness of breath during exercise
Embarrassment or self-consciousness
Moderate cases may benefit from non-surgical treatments.
This is the stage when the condition usually becomes most severe.
Bone and cartilage growth increases the depth of the hollow.
Clear symptoms may include:
Chest pain
Palpitations
Poor physical endurance
Occasional displacement of the heart
Surgery, such as the Nuss procedure, is often the best option.
The indentation becomes stable but remains visible.
Symptoms may worsen as body size increases, adding pressure on the heart.
Non-surgical treatments are less effective, but surgery is still successful—though recovery may take longer.
The condition becomes fixed and chronic.
The indentation may affect functions such as:
Shortness of breath
Chest pain
Reduced exercise tolerance
Surgery is possible but more complex due to stiffer cartilage.
Pectus Excavatum is a congenital deformity in which the breastbone sinks inward. Its causes are varied and include genetic, developmental, and medical factors:
Around 30–50% of cases have a family history.
Research suggests complex genetic components and mutations linked to connective tissue disorders.
A positive family history increases the likelihood in children.
Conditions like Marfan syndrome and Ehlers–Danlos syndrome make connective tissues overly flexible or weak.
These disorders affect ribcage structure and increase the risk of chest indentation.
Some theories suggest that rib cartilage grows abnormally, pushing the breastbone inward.
Recent studies show this growth may be excessive or relatively shortened, contributing to the deformity.
The deformity may be present at birth or appear gradually as the child grows, especially during puberty when the chest expands rapidly.
Some hypotheses link the condition to:
In-uterine pressure
Diaphragm movement
Breathing patterns during growth
These may contribute but are not primary causes.
Certain neuromuscular conditions—such as spinal muscular atrophy or muscle weakness—can reduce chest support, increasing the risk of indentation.
Some theories associate vitamin D deficiency (rickets) or abnormal bone development with chest deformities, but these causes are very rare.
Visible inward depression of the chest.
Asymmetry between the two sides of the chest.
Protrusion of the lower ribs.
A “hole” appearance when standing or inhaling.
Indentation deepens with growth or during adolescence.
Shortness of breath during physical effort.
Rapid breathing or difficulty taking deep breaths.
Fatigue faster than peers.
Reason: indentation compresses the lungs in severe cases.
Palpitations or occasional arrhythmias.
Dizziness or quick tiredness.
Mild chest pain with exertion.
Reduced physical endurance.
Embarrassment about chest appearance.
Avoiding open clothing or swimming.
Low self-confidence, especially during adolescence.
Mild back curvature (kyphosis).
Quick fatigue during play.
Recurrent chest infections in some cases.
• Symmetric:
The indentation is centered and even on both sides—usually with milder symptoms.
• Asymmetric:
The indentation is deeper on one side and may cause greater pressure on the heart.
• Mild:
A slight indentation, usually without symptoms.
• Moderate:
May mildly affect breathing and requires medical evaluation.
• Severe:
A deep indentation that compresses the heart and lungs; surgery (such as the Nuss procedure) is often required.
• Funnel-shaped:
The most common type.
• Long Depression Type:
A long vertical indentation affecting a larger portion of the chest.
• Localized:
A small, focused depression in a specific spot.
• With Pectus Carinatum (pigeon chest):
A combination of inward indentation and outward protrusion.
• With scoliosis:
Can worsen cardiac pressure and breathing difficulties.
• Early-Onset:
Appears at birth or within the first few months of life.
• Adolescent-Onset:
Appears or worsens during adolescence due to rapid growth.
• Linked to Marfan Syndrome:
Usually severe, asymmetric, and requires careful cardiac monitoring.
• Linked to Ehlers–Danlos Syndrome:
The chest wall is soft and flexible, with significant joint laxity.
Pectus Excavatum is a congenital deformity where the breastbone sinks inward to varying degrees. Mild cases may cause no major issues, but moderate and severe cases can affect the heart, lungs, breathing, physical performance, and psychological well-being.
Shortness of breath, especially during exercise
Difficulty taking deep breaths
Quick fatigue with physical activity
Feeling like the air intake is insufficient
Cause: the indentation reduces the space available for lung expansion.
Pressure on the right ventricle, reducing blood-pumping efficiency
Leftward displacement of the heart
Palpitations or irregular heartbeat
Chest pain during exertion
Reduced physical endurance
These symptoms appear mostly in moderate and severe cases.
Quick exhaustion during sports
Poor performance in running or high-intensity activities
Difficulty maintaining prolonged exercise
Dizziness or rapid shortness of breath during activity
Caused by compression of internal tissues and poor posture.
Muscular strain due to shallow breathing
Pain sites: center of the chest, between the shoulder blades, or along the sides
Poor lung expansion increases susceptibility to infections
Persistent cough or difficulty clearing secretions
Upper respiratory problems
Embarrassment about chest appearance
Avoiding open clothing or swimming
Low self-esteem and social withdrawal
Anxiety or depression in some cases
Many patients seek surgery due to the psychological impact more than the physical symptoms.
The deformity may worsen during childhood and adolescence
Increased indentation and pressure on the heart and lungs
Harder to treat at an older age
Increased chest asymmetry
Kyphosis (rounded back) or mild scoliosis
Weak back and shoulder muscles
Chronic upper or lower back pain
A combination of breathing difficulties, chest pain, reduced exercise tolerance, and psychological burden.
Can affect school, work, daily activities, and sports performance.
Surgical treatment is the most effective solution for moderate and severe cases because it corrects the root problem: the inward displacement of the sternum and abnormal cartilage.
Modern and traditional techniques are available, and the surgeon chooses the most suitable option based on age and deformity severity.
⭐ The most common and widely used surgery worldwide
Two small incisions on each side of the chest
A curved metal bar (Nuss bar) is inserted under the sternum
The bar pushes the sternum outward to correct the deformity
The bar remains for 2–3 years, then removed in a simple procedure
Small incisions and better cosmetic results
Short operative time (30–60 minutes)
Suitable for children, teenagers, and adults up to about 35 years
Faster recovery compared to traditional surgery
Pain in the first few weeks after surgery
Rare risk of bar displacement
Requires a second procedure for bar removal
⭐ Suitable for very severe cases or those not eligible for the Nuss procedure
A vertical incision in the middle of the chest
Removal of deformed cartilage causing the indentation
Repositioning the sternum forward and stabilizing it with a temporary metal support
The support is removed after 6–12 months
Effective for very severe deformities
Direct control over the sternum and cartilage shape
Suitable for older adults
Larger surgical incision
Longer recovery period
Limited mobility and chest discomfort for 1–2 months
Adults require modified techniques because their chest cartilage is stiffer.
⭐ Designed for adults with stronger and stiffer cartilage
Uses stronger or multiple bars
Additional fixation techniques to prevent displacement
Sometimes minor cartilage trimming is performed
Nearly similar results to the pediatric Nuss procedure
Less pain than Ravitch for adults
Slightly more postoperative pain compared to teenagers
Longer recovery time
⭐ Used as an aid during the Nuss procedure
A small camera is inserted inside the chest
Ensures the bar is placed safely
Reduces the risk of injuring the heart or lungs
Higher safety
Clear visualization during surgery
Fewer complications
⭐ For very complex cases such as:
Multiple congenital deformities
Post-traumatic deformities
Recurrence of Pectus Excavatum after failed surgery
Reshaping the chest cartilage
Using titanium plates or supports to stabilize the chest wall
A major surgery but provides full correction
⭐ Not for medical treatment, only for appearance improvement
Includes:
Autologous fat grafting to reduce visible depression
Silicone chest implants to mask the indentation
Chest muscle sculpting (mainly for men)
These methods do not treat the underlying problem.
They are used for people who want to improve the appearance without undergoing major surgery.
Exercises after Pectus Excavatum surgery help speed up recovery, strengthen the chest and back muscles, and improve breathing. They are divided by recovery stage:
Focus: lung expansion and preventing muscle stiffness.
Inhale deeply through the nose for 3 seconds.
Hold for 1 second.
Exhale slowly through the mouth for 4–5 seconds.
Repeat 10 times every hour.
Blow up a balloon 5 times daily.
Helps lung expansion and strengthens inspiratory muscles.
Stop if dizziness or pain occurs.
Lift your shoulders upward, hold for 2 seconds, then lower slowly.
10 repetitions × twice daily.
Rotate shoulders backward 10 times, then forward 10 times.
Improves chest flexibility without stressing the incision.
Focus: flexibility and posture improvement.
Stand in a doorway with arms at a 90° angle on the frame.
Lean forward slowly until you feel a gentle stretch.
Hold 20 seconds × 3 times.
Stand tall, pull shoulders back, lift your head, and engage the back muscles.
Hold 30 seconds × 3 times daily.
Stand with your entire back touching the wall: head, shoulders, and hips.
Hold for 30 seconds.
Helps align the spine.
Do push-ups against the wall instead of the floor.
Hands at shoulder level, bend elbows slowly.
10 repetitions daily.
Lie on your stomach (if approved), lift arms and head slightly, hold for 3 seconds.
Repeat 8 times.
Place one hand on your belly.
Inhale so your belly rises, then exhale slowly.
5–10 minutes daily.
Helps expand the chest, strengthen lungs, and improve posture.
Allowed only after the incision fully heals.
Rowing motion, chest press with bands.
Start with light resistance and increase gradually.
Safe poses like Mountain Pose and gentle Baby Cobra.
Enhances flexibility and breathing.
(Suitable for all techniques: Nuss, Ravitch, Modified Nuss, Reconstruction)
Pain is normal, especially in the first 2–6 weeks.
Take painkillers on schedule as prescribed.
Use warm (not hot) compresses to relax muscles.
Avoid sleeping on the side or stomach for the first 2 months.
Use a supportive pillow behind your back when sitting.
Keeping the incision clean and dry prevents infection.
Change dressings as directed by the surgeon.
Wash hands before touching the wound.
Avoid creams or oils without medical approval.
Increasing redness or swelling
Pus or warmth around the incision
Fever
Unusual pain
Gradual movement is essential for recovery.
Daily walking for breathing and circulation
Light home activities
Lifting light objects during the first month
Heavy lifting for 2–3 months
Strong forward bending or twisting
Intense sports (running, weightlifting)
Swimming before the incision heals
Avoid chest pressure
Avoid sleeping on the side for 6–8 weeks
A healthy diet speeds up recovery.
Adequate water intake
Protein-rich meals: eggs, fish, chicken, legumes
Vegetables and fruits
Reduced salt to prevent swelling
Heavy, greasy foods
Soft drinks for 2 weeks
Smoking—it delays bone and cartilage healing
Best position: on your back with two pillows elevating the upper body.
Place a pillow between the knees to reduce chest muscle tension.
Avoid sudden rolling during sleep.
School: after 2–3 weeks if activities are light.
Work: depends on job type, usually after 3–6 weeks.
Physically demanding jobs: may need 8–12 weeks.
Avoid chest impact.
Be cautious when sitting and using a seatbelt.
Call the doctor if you feel the bar moving.
The bar is removed after 2–3 years in a minor procedure.
Seek medical care immediately if you notice:
Difficulty breathing
Irregular heartbeat
Sudden sharp pain
Significant swelling around the incision
Unusual chest movement
Persistent fever
Especially for children and teenagers:
Reassure them that the chest shape will improve over time.
Explain that pain is normal and temporary.
Encourage family involvement in daily care.