If you hit your head and got a small bump on forehead but after 3 days it started to get bigger is anything serious?

If you hit your head and developed a small bump that has started to increase in size after three days, it is important to seek medical attention. While it is possible that the bump is a harmless hematoma (collection of blood) that will resolve on its own, there is also a chance that it could be caused by a more serious underlying condition, such as a fracture or infection. Some signs and symptoms could be a headache, loss of vision, balance or memory, persistent vomiting and loss of consciousness that could help to recognize a severe trauma. A healthcare professional can properly assess the bump, rule out any serious issues, and determine the best course of treatment. Ignoring a potentially serious head injury can have detrimental consequences down the road, so it is always better to be safe than sorry.