A report published in the Anatolian Journal of Psychiatry in October 2018, presented a case of trichotillomania that manifested during posttraumatic stress disorder suggesting a possible genetic link between the two.
The patient came to the attention of researchers when he presented to an emergency psychiatric clinic for anxiety, depression, irritability, aggression, and pulling out his hair from various parts of his body. At 20 years old, this young man never showed signs of previous trichotillomania or mental illness. However, his best friend died in a car accident the previous year and viewing his friend's damaged body contributed to the development of PTSD. His anxiety, nightmares, emotional stress and hair pulling all started after viewing his deceased friend.