The basic cause according to most authorities is an inherited or congenital weakness of the abdominal or other muscles. This seems to appear from the fact that hernias at times run in families. Thus, for example, the trumpet player who suffers a hernia in his neck no doubt brought it on because of straining while blowing; but he did not necessarily strain more than other trumpet players who do not suffer this injury. It is just that in the structure of his throat some of the muscles were not as strong as they should have been.
There are other secondary causes specific to various types of hernia. There are hernias of the brain, usually caused by accidents or tumours, and there are those of the iris or eyes. There are also hernias of the neck, found in wind-instrument players who put quite a strain on the muscles of their necks while playing their instruments.
Then again, there are what are known as "incisional" hernias. These are protrusions where there was previously an operation for some cause other than a hernia. (A hernia where there previously was an operation for a hernia is called a recurrent hernia.) There are some in the medical profession who hold that if surgeons were more careful when operating and sewing up their patients, there would be practically none of these incisional hernias; or at least very few of them, comparatively speaking.
Then again, a hernia could easily result from an accident. If someone were to suffer a fall on his feet, that could well result in a hernia. The most common form of hernia, that of the groin in men, usually is brought on by straining, as when straining to have a bowel movement or trying to lift some heavy object in an injudicious manner. It is called an "inguinal" hernia.
There are other secondary causes specific to various types of hernia. There are hernias of the brain, usually caused by accidents or tumours, and there are those of the iris or eyes. There are also hernias of the neck, found in wind-instrument players who put quite a strain on the muscles of their necks while playing their instruments.
Then again, there are what are known as "incisional" hernias. These are protrusions where there was previously an operation for some cause other than a hernia. (A hernia where there previously was an operation for a hernia is called a recurrent hernia.) There are some in the medical profession who hold that if surgeons were more careful when operating and sewing up their patients, there would be practically none of these incisional hernias; or at least very few of them, comparatively speaking.
Then again, a hernia could easily result from an accident. If someone were to suffer a fall on his feet, that could well result in a hernia. The most common form of hernia, that of the groin in men, usually is brought on by straining, as when straining to have a bowel movement or trying to lift some heavy object in an injudicious manner. It is called an "inguinal" hernia.