My side hurt when I breath in?

There are several possible reasons why your side might hurt when you breathe in. Some of the most common causes include:

* Muscle strain: This is the most common cause of side pain when breathing in. It can occur from overexertion, such as during exercise, or from an injury.

* Pleuritis: This is inflammation of the pleura, the thin membrane that lines the lungs and chest cavity. Pleuritis can be caused by a variety of factors, including infection, autoimmune disorders, and cancer.

* Pneumonia: This is an infection of the lungs. Pneumonia can cause inflammation and fluid buildup in the lungs, which can make it difficult to breathe and can cause side pain.

* Costochondritis: This is inflammation of the cartilage that connects the ribs to the breastbone. Costochondritis can be caused by a variety of factors, including injury, infection, and autoimmune disorders.

* Hiatal hernia: This is a condition in which part of the stomach protrudes through an opening in the diaphragm, the muscle that separates the chest cavity from the abdominal cavity. Hiatal hernias can cause heartburn, chest pain, and side pain.

If you are experiencing side pain when breathing in, it is important to see a doctor to determine the cause and receive appropriate treatment.