The persistent scratching of the back of the head in babies is a concerning symptom that may indicate an underlying medical condition or irritating factor. This behavior could stem from cow’s milk allergy, food sensitivities, or metabolic issues. Alternatively, it may be a self-soothing mechanism, a response to anxiety, or a result of dry skin, heat, or teething. To determine the cause and provide appropriate treatment, it is crucial to consult a healthcare provider, such as a pediatrician or dermatologist.