Accumulation of food fever back to cause nosebleeds, may be due to nasal mucosal congestion and edema, nasal cavity dryness. In addition to fever, nosebleeds can also be seen in blood diseases, such as leukemia. 1. Nasal mucous membrane congestion and edema: food accumulation leads to food indigestion, intestinal dysfunction, intestinal bacteria abnormal fermentation leads to inflammation and causes fever. Fever can be accompanied by increased permeability of the capillaries of the nasal mucosa, congestion and edema of the nasal mucosa, accompanied by increased nasal mucosal secretion, which can be accompanied by nosebleeds. 2. Nasal dryness: after some patients have fever, there is too much water loss from the surface of the body, coupled with accumulation of food, poor appetite, less drinking water, resulting in nasal dryness, increased vascular fragility, nasal capillaries are prone to rupture, resulting in nosebleeds. If there is fever and nosebleed, it can’t be considered to be caused by accumulation of food alone, but also can be seen in blood diseases such as leukemia, myelodysplastic syndrome, etc., which must be taken seriously. It is recommended that patients go to the hospital in time to get a clear diagnosis and treatment under the guidance of the doctor.