Suddenly a small patch of baldness on the top of the head can heal itself. This condition usually does not require special treatment, and most people will grow out slowly after a few months, and will enter a recovery period after 3-4 months. If you find that you have a small patch of baldness on the top of your head and there is no sign of growth for more than half a year, you need to receive treatment to achieve slow hair growth on your own. This disease is usually caused by genetic or environmental factors, especially in cases of nervous disorders such as excessive stress or lack of rest, irritability, etc. This disease can be triggered. In addition, in addition to active treatment, attention should be paid to reducing the recurrence of the disease, so you need to pay attention to adjusting your lifestyle while undergoing treatment. During the treatment of the disease, it is necessary to develop good habits of life and rest, do not give yourself too much psychological pressure, and try not to have excessive mood swings.