👉 Non-fixation, also known as non-removal fixation, is a condition in which a patient's hair grows back after being removed from the head due to the body's immune system not recognizing it as a foreign object. This can be caused by various factors such as trauma or infection, and may require surgical removal of the hair. Non-fixation can occur with both male and female patients, although it is more common in females. It can also lead to other issues such as baldness,