If your nose is hit while playing ball, you can determine whether it has collapsed or not through symptoms as well as imaging tests. 1. Symptoms: If the nose is hit while playing ball, if the strength is light, the nose usually will not collapse, and most of them will only have slight swelling and pain. If the degree of being hit is heavier, localized severe pain, also appear bone friction sound, or ventilation function is affected, you should consider the possibility of nose collapse. Meanwhile, if the nose is obviously crooked, most of it is collapsed. 2. Imaging examination: For patients with severe symptoms, they should go to the hospital for imaging examination, such as head X-ray examination, CT, etc., which can diagnose whether there is any fracture or collapse of the nasal bone. It is recommended to treat the nose injury in time, if there is a nosebleed, the bleeding should be stopped in time. If a fracture of the nasal bone occurs, you should seek medical attention to clarify the severity and continue the next step of treatment under the guidance of a specialist.