Is Bleb a Medical Term?

In medicine, a bleb is a blister (often hemispherical) filled with serous fluid. Blebs can form in a number of tissues by different pathologies, including frostbite. In pathology pulmonary blebs are small subpleural thin-walled air-containing spaces, not larger than 1-2 cm in diameter.

What is a bleb in the lung?

Small air blisters (blebs) can develop on the top of the lungs. These air blisters sometimes burst — allowing air to leak into the space that surrounds the lungs. Mechanical ventilation. A severe type of pneumothorax can occur in people who need mechanical assistance to breathe.

What causes a bleb?

Milk blebs are typically due to an improper latch. A baby's sucking may be too shallow, causing excess pressure on a point of the breast. Feeding at an unusual angle can also cause milk blebs.