My 3 months daughter fell from a stroller and hit her head on the floor. she is reddish on the side of the head. should i get worried or will she be fine?

Can call Dr on video: Depends on details; 3 months is very young. If a child is behaving differently after a mild injury, she should be evaluated by her primary doctor. Sometimes an emergency room visit is needed, depending on the symptoms. Head bumps in which there is low-impact on the head, little crying, no changes in behavior and no headache after the first hour, etc..., usually don't cause internal injuries.