Grapefruit will not cause nosebleeds when eaten in excess, because grapefruit is a cold fruit, which has the effect of lowering fire and will not cause nosebleeds, while hot fruits or foods will cause nosebleeds when eaten in excess. Grapefruit not only will not cause nosebleeds, grapefruit contains a lot of vitamin C, supplemental vitamin C has the role of preventing nosebleeds. But grapefruit can not eat too much, because of its cold nature, eating too much will hurt the spleen and stomach leading to indigestion, causing gastrointestinal disorders. Grapefruit also contains relatively high sugar, eating too much will cause dry mouth and other conditions, if diabetics eat too much grapefruit will lead to aggravation of the disease, in addition to a light diet can effectively prevent nosebleeds and the phenomenon of fire.