A small piece of baldness at the back of the hair may be caused by spot baldness, folliculitis, scalp trauma and so on.
1. Patchy baldness: the cause of patchy baldness is still unclear, and it is considered to be related to heredity, mental factors, immune inflammation and other reasons. Patients may suddenly appear oval or round hair loss area, therefore, patients with baldness at the back of the hair will have the symptom of a bald patch.
2. Folliculitis: Folliculitis is considered to be caused by the infection of pathogens such as Staphylococcus aureus, and patients will have red papules, pustules, itching, pain and other manifestations in the area of diseased hair follicles. In addition, some patients will also appear scarring, localized hair loss and other manifestations. If folliculitis occurs at the back of the patient’s hair, there will be a small piece of baldness.
3. Scalp trauma: scalp trauma may be caused by contusion or blunt force trauma, patients will have scalp cracks, bleeding and other manifestations, some patients with severe symptoms may damage the hair follicles, which will lead to localized no longer grow hair. If the patient has trauma at the back of the scalp, it may appear as a bald patch.
A small piece of baldness behind the hair may have other reasons, it is recommended that patients seek medical attention in a timely manner to clarify the cause of the disease and follow the doctor’s instructions to standardize the treatment.