Rib Flaring · Chest Wall Surgery · London
You can see it. You can feel it. And no one takes it seriously.
Rib flaring — the outward protrusion of the lower ribs — is one of those conditions that gets dismissed as “normal variation” or “just posture.” For patients with significant protrusion, especially when asymmetric or painful, that dismissal feels hollow. The ribs are visibly there. They may cause pain with certain movements or positions. They affect how clothes fit and how you feel in your own body. A proper assessment — including CT imaging — is the starting point for understanding whether and how this can be addressed.
Types and causes of rib flaring
Rib flaring can be structural (the ribs themselves protrude) or related to muscle imbalance (weak core and abdominal muscles allowing the ribcage to flare outward). Understanding the cause is essential before considering surgery.
- Visible protrusion of one or both lower ribs
- Asymmetry of the lower chest wall
- Pain or discomfort at the lower rib margin
- Difficulty finding comfortable seating positions
- Self-consciousness about appearance
- Sometimes associated with slipping rib syndrome
- CT scan of the chest wall to assess anatomy
- Assessment of whether postural / muscular component is present
- Physiotherapy and core strengthening trial first if appropriate
- Assessment for associated slipping rib syndrome
- Patient expectations — cosmetic vs functional goals
- Discussion of realistic surgical outcomes
Important: Rib flaring due to muscle weakness and poor posture should be addressed with physiotherapy and core strengthening before considering surgery. Surgery is appropriate where the flaring is structural, causing genuine functional impairment or significant pain, and where conservative measures have been properly tried.
Surgical correction of rib flaring typically involves partial resection or reshaping of the protruding costal cartilage (the cartilaginous portion of the rib near the sternum). The approach varies depending on which ribs are affected and the degree of protrusion. It is generally performed through small incisions and the recovery, while significant, is manageable. The full technique is discussed at consultation once your specific anatomy has been reviewed on CT imaging.
NHS funding for rib flare surgery is very limited and typically requires significant functional impairment — pain affecting daily life, sleep, or physical activity that has not responded to conservative management. For cosmetic-only indications, NHS funding is generally not available. Private surgery is an option for patients with either functional or significant cosmetic concerns. A consultation will clarify which criteria apply to your case.
Yes, sometimes. Slipping rib syndrome occurs when the 8th, 9th, or 10th ribs — the floating ribs — are hypermobile due to weakened costal cartilage connections. These are the same ribs that typically flare. If you have both a visible protrusion and a catching or sharp pain at the lower rib margin reproduced by specific movements, slipping rib syndrome should be assessed at the same time. Costal cartilage resection can address both problems simultaneously in appropriate cases.
Get a proper assessment of your rib flaring.
Whether functional or cosmetic, a consultation with CT review will clarify the anatomy, whether surgery is appropriate, and what to expect.
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