Mild hydrocephalus, or excess fluid in the brain, can be detected during an anomaly scan in pregnancy. While it is natural to feel concerned, your doctor's reassurance that it will resolve as the pregnancy progresses is important to consider. Mild cases of hydrocephalus often resolve on their own without causing any long-term issues for the baby. However, close monitoring by your healthcare provider is necessary to ensure that there are no complications or further progression of the condition. If you have any concerns or questions, it is always best to discuss them with your doctor who can provide personalized guidance based on your specific situation.