Radiator fluid question?

ok so i own a 92 honda prelude ..after about 5 mins of driving it the temperature guage will hit up to the middle ...so i park my car n u could hear the coolant boiling with pressure i open the hood and all the fluid is coming out through the reservoir tank ....and all the hoses are packed with pressure..why is this happening..i already changed the radiator cap n flushed the old fluid n put the 50/50
Radiator fluid question?
Plugged radiator?

Bad water pump?

Bad radiator hose?

Blown head gasket?

Leak in the cooling system?

Take it to a radiator shop and get things checked out before you fry the engine.
Radiator fluid question?
change out the thermostat
you should check if the thermostat is not gettint stuck closed if ok check cooling fan
You have a plugged radiator have it removed and cleaned or better yet a new one is best.
if the temp guage is in the middle, and the coolant is boiling, then you have a bad temp guage. the overheating was answered by a previous person. any of the causes they listed could be it, or a combination of several. be prepared for a good size repair bill. if you ignore it you will destroy the motor
change the thermostat.
Replace the Thermostat, check the Hoses and Clamps again. You're losing Pressure Somewhere, along with a Bad Thermostat that is causing the Boiling. Make sure the Thermostat is Pointing the Right way and Centered properly so it will Open %26amp; Close Corroectly. Bad Tune-up or Excessively Lean Fuel Mix. will also contribute to the Overheat.