To see a smooth forehead in your dream indicates that you are fair and show good judgment. It is also indicative of your intellectual capacities.
To see a wrinkled forehead in your dream symbolises worries and burdens. You may be deep in thought.
To dream that you feel the forehead of your child denotes sincere praises.
To dream that you bumped or injured your forehead implies that you have made a poor judgment. It also indicates regret in something you did.