9-month-old baby’s head is swollen in the fall need to closely observe the baby with no other symptoms of discomfort, and take hot compresses, cold compresses, puncture blood drainage and other ways to relieve the swelling. 1. Observation: Observe the baby with or without coma, convulsions, projectile vomiting, unequal pupil size, etc., if the above symptoms are considered suspected intracranial injury, the need for early medical attention. 2. Cold compress: baby swollen after falling on the head, and the skin is intact without breakage, consider soft tissue swelling. Within 72 hours of injury can be localized cold compresses to help stop bleeding, pain, swelling. 3. Hot compresses: If the injury lasts more than 72 hours and the mass shrinks or does not increase significantly, local hot compresses can be applied to promote the absorption of blood stasis. 4. puncture blood: if the injury, swelling is obvious and fluctuating feeling, consider subcutaneous bleeding, need to promptly seek medical attention for puncture blood after local pressure bandage treatment. After the baby fell on the head, parents should not take it lightly, it is recommended to take the baby to the hospital in a timely manner to avoid delays in the condition.