There are many reasons why two-month-old babies always shake their heads in bed, mainly including sleep environment discomfort, unclean scalp, scalp eczema, vitamin D or calcium deficiency, pinworm disease and other reasons, need to go to the hospital to consult, clear causes and then treatment. 1, sleep environment discomfort: the indoor temperature is too high, the baby wears clothes covered with too thick, the head often sweat, the surrounding environment noisy, etc., will affect the baby’s sleep quality, appear The baby is always shaking his head when he sleeps. Parents are advised to provide a quiet and comfortable sleeping environment for their babies; 2. unclean scalp: parents do not pay attention to the baby’s head hygiene, resulting in more dandruff and greasy hair, causing itching, which mainly manifests itself as unsteady sleep and shaking the head all the time. It is recommended that parents increase the number of times the baby washes his hair, once sweating in time to dry; 3, head eczema: baby head eczema, will also cause itchy scalp discomfort, resulting in the baby sleep is always shaking his head hard left and right. It is recommended to seek medical advice and follow the doctor’s instructions to use topical skin cream ointment to keep the head clean, clean; 4, vitamin D or calcium deficiency: lack of calcium, vitamin D baby nerve excitability will increase, mostly manifested as frequent head shaking, crying, easy to shake, sweating, night crying, etc.. Under the guidance of the doctor, the baby should be properly supplemented with calcium and vitamin D. Parents also need to take their children to get more sunlight to promote the absorption of calcium and vitamin D. 5. Pinworm disease: When pinworms are parasitic in the baby’s intestines, they will stimulate the anus and cause perianal itching, and the affected child will show symptoms of shaking his head during sleep. It is recommended that parents pay attention to the stool properties, take the child to the doctor in time, improve the smear examination to clarify the diagnosis, and take mebendazole and other drugs if necessary. At the same time, parents should pay attention to the baby’s diet hygiene, do not let the baby often put their hands in the mouth.