<s>[INST] My almost 4 yr old little girl hit her forehead on the back of her sisters hear today while coming down a water slide and it made and egg. However, it s not the typical knot or egg... In stead of being hard it is soft.... Feels like a blister... Should this concern me? It was quite the bump and she cried but I m not use to soft knots....they have always been hard... [/INST] Hello. I just read through your question.A soft bump is not uncommon. As long as she is otherwise well, there is no need for concern. The bump, even though soft, will resolve with time. </s>