Because you have posted this in the business section, and along with other questions having to do with workplace safety, I assume that you are asking about it in this context. In the context of a business, people may seem to be accident prone, but it is probably not a personal trait. Instead, it is probably caused by external factors.
One of the major factors that can make a person accident-prone is stress. People who are feeling stressed or worried will be preoccupied. They will not put as much focus on what they are doing. This can make them more likely to have accidents at work.
Another factor is the amount of attention that a person can pay to their work. This can be affected strongly by the degree to which the worker is required to hurry and/or to do multiple tasks. People who do not have to hurry and can concentrate on one task are less likely to have accidents.
It may be true that some people are more disposed to have accidents. However, it is also possible for management to create a workplace that will make people less likely to have accidents. If management can create a workplace that is as stress free and unhurried as possible, it can reduce the number of accidents that are likely to happen.