Non-developed chest on one side
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Non-developed chest on one side

If you've ever noticed that one side of your chest is more developed than the other, don't worry – you're not alone. 

Non-developed chest on one side is a medical condition where one side of the chest does not develop properly. This can cause problems with breathing and may also lead to an uneven appearance of the chest and can cause functional problems with activities like arm elevation and chest expansion.Treatment for male chest development typically involves surgery to correct the problem. We recommend that you speak to your doctor if you are concerned about this condition.

Symptoms of non-developed chest on one side

Individuals with this condition possess an asymmetrical body habitus, with one side of the thorax being smaller than the other. The degree of asymmetry can vary from person to person. Some people only have a very mild form of the condition, while others may have more severe forms.

The common signs of this condition include:

  • an underdeveloped ribcage
  • the missing or underdeveloped nipple on the  affected side
  • uneven breasts
  • shortness of breath
  • difficulty exercising
  • fingers are stuck together or webbed
  • elevated shoulder bridge

What are the causes of non-developed chest on one side?

Poland syndrome is a congenital birth defect characterized by the underdeveloped or absent pectoral muscles on one side of the body. It can also include abnormalities of the hand, arm, chest, and shoulder on the affected side. Poland syndrome occurs in both sexes but is more common in males. The cause of Poland syndrome is unknown, but it is believed to be due to a problem with the development of the thoracic wall during embryonic development. Treatment for Poland syndrome may include surgery to correct any deformities, physical therapy to improve muscle function, and occupational therapy to help with everyday activities. 

Abnormal chest development in males is diagnosed by physical examination and can be confirmed with imaging tests such as MRI or CT scans. It is recommended to treat the condition to avoid disability. If not treated, it can affect the movement and function of the affected arm and hand. It can also cause psychological distress due to cosmetic concerns.

What are the treatment options for non-developed chest on one side?

Reconstructive surgery: Reconstructive surgery is a type of surgery that helps to improve the function and appearance of body parts. It can be used to treat Poland Syndrome, a condition that causes underdeveloped or missing muscles on one side of the body. Reconstructive surgery is performed by plastic surgeons and can involve various techniques, such as muscle grafting, tissue expansion, and flap surgery. It can help to improve the function of affected muscles and may also improve the appearance of the affected side of the body. The recovery process after reconstructive surgery can be lengthy, but most people are able to return to their normal activities after a period of time.

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