What happens if you fall and there is a knot on your forehead?

Answer

According to the Mayo Clinic, after a fall or a blow onto the head, a knot or bump is caused by bleeding under the skin. The head has many blood vessels, and when they are broken, it leads to bruising and swelling.

The presence of a knot on the head does not automatically indicate a serious injury, the Mayo Clinic explains. The extent of the injury often involves several variables, such as the speed of impact, the size of the injured party and the hardness of the contacted surface. Although any head injury should be reported to a doctor, immediate help should be sought if a person experiences symptoms like unconsciousness, confusion, headache, imbalance, vomiting, memory loss or mood shifts.

Reference:
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