Mars in the 1st house

The 1st house is the self as others meet it. Mars here arrives with force. These people move first, say the thing and take the physical risk, and they are read as direct whether or not they meant to be. Energy usually runs high, and sport suits it. The cost is friction: the same directness that gets things started also puts backs up, and a short fuse, minor injuries and a habit of collecting scars are part of the traditional picture.