Bruises on the knees of children may be caused by trauma, thrombocytopenic purpura, allergic purpura and other factors.
1. Trauma: If there are no other symptoms, it may be caused by the patient’s mischievousness, accidental collision and fall while playing.
2. Thrombocytopenic purpura: it is a common bleeding disorder among children, patients with bruises on the knees, usually due to too few platelets leading to coagulation disorders, bruises after bumping, it is recommended to go to the hospital in time for routine blood tests to check whether the platelets are normal, and symptomatic treatment after diagnosis.
3. Anaphylactic purpura: refers to the allergic inflammation of small blood vessels throughout the body. Patients with bruises on the knees may be allergic to certain substances, or bacteria, viruses and other infections. At the same time, the body will be accompanied by bleeding spots and other situations.
Children’s knee bruises, there may be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.