Why scurvy called sailors disease?
Scurvy is a disease that occurs in the mouth when the body lacks vitamins, specifically vitamin C. Before the invention of fridges and freezers and many other preservatives, there was no way to keep food from going bad other than salt (which admittedly, didn't work very well). Sailors often went on long journeys exploring or trading, and any fruits or vegetables they had would go bad long before being able to restock again.
Your question is unclear, but if you're asking WHY it was nicknamed a sailor's disease... It is because sailors travelled for months, sometimes years without a good supply of Vitamin C/Fruits and Vegetables and so it was common for sailors to develop Scurvy. But after a while limes were taken on board ships to prevent this.
People back then did not "Catch" scurvy because scurvy is not a disease. Scurvy is a form of malnutrition (lack of vitamin C) It was most common on ships at sea where they ate mostly cured and preserved meat. Even potatoes would have kept scurvy from happening. When they found out that they could take lime trees on the ship with them, feeding lime to the sailors in the form of juice kept scurvy from…
Hundreds of years ago, sailors used to get this disease from a lack of vitamin C. There was no good way to store citrus fruit on long voyages and the sailors would become sick. English sailors used to be nicknamed 'limeys'. That is bacause they would bring limes with them and suck on the limes to prevent scurvey.
Scurvy. Lack of vitamin C can also result in frequent nose bleeds. Scurvy is the main one. It's not very common now, but it was a big problem back when sailors would be off at sea for months with no access to fresh fruits or vegetables. Lack of vitamin C leads to scurvy. (That's why British sailors ate limes, and were called "Limeys".)
Jaques Cartier got a disease called scurvy caused by a lack of vitamin C. The needles and bark of white cedar vitamin C. It was many years before Europeans understood how to cure scurvy. The aboriginals helped Jaques Cartier when he arrived in North America and cured scurvy with lime. Back then sailors called it limeys but in this time it is called limes.
Scurvy is caused by a lack of vitamin C. Sailors in the 1700 and 1800's went on long voyages where fruits and vegetables containing vitamin C were not available to them because these foods would rot. The diet of these sailors consisted mainly of cured meats and biscuits. Today this disease is nearly obsolete due to modern nutrition, but it was the number one killer of sailors from the 1500-1800's.