The following conditions are common in infant baldness: 1. congenital hair follicle defects or acquired damage to local hair follicles, most often caused by damage to the hair follicles caused by the use of forceps at birth, resulting in local hair damage. 2. micronutrient deficiencies, when a baby is deficient in zinc, iron or other micronutrients, baldness may occur, often accompanied by poor appetite and poor physical development. You can take your baby to the hospital for a trace element test, and according to the test results, give the appropriate element supplement. 3. Skin infections, when there is a local fungal-like skin infection, baldness will appear, mostly accompanied by skin flaking and itching, etc. Take your baby to the dermatology department for further diagnosis and treatment.