Human nose the Japanese invasions of Korea from 1592 to 1598. The septal cartilage can be destroyed through repeated nasal inhalation of drugs such as cocaine. This in turn can lead to more widespread collapse of the nasal skeleton. Nose-picking is a common, mildly taboo habit. Medical risks include the spread of infections, nosebleeds and, rarely, perforation of the nasal septum. When it becomes compulsive it is termed rhinotillexomania. The wiping of the nose with the hand, commonly referred to as the "allergic salute", is also mildly taboo and can result in the spreading of infections as well. Habitual as well as
Obsessive–compulsive personality disorder triggered by events in the lives of those who are predisposed to OCPD. These events could include parenting styles that are over-involved and/or overly protective, as well as trauma faced during childhood. Traumas that could lead to OCPD include physical, emotional, or sexual abuse, or other psychological trauma. Under the environmental theory, OCPD is a learned behavior. Further research is needed to determine the relative importance of genetic and environmental factors. The fifth edition of the "Diagnostic and Statistical Manual of Mental Disorders" (DSM-5), a widely used manual for diagnosing mental disorders, defines obsessive–compulsive personality disorder (in Axis II Cluster