There are many diseases to be wary of when a 14 year old child’s eyes are swollen. If the swelling is limited, it could be a wheal or a blepharocyst, or it could be allergies, kidney failure, heart failure, etc., which can occur as a result of diffuse edema. Swelling of the eyes that occurs in children and adolescents as young as 14 years of age is more commonly caused by infection or blockage of the blepharoplasty glands, etc., resulting in wheals or blepharocysts, with the former having obvious signs of inflammatory infection, such as redness, swelling, heat, and pain, and the latter having no obvious inflammatory response. In addition to the above causes of localized swelling, it is necessary to be alert to the occurrence of allergies, stings, as well as renal failure, heart failure and other conditions occurring in children and adolescents 14 years of age, manifested as diffuse edema, which requires timely improvement of the relevant renal puncture and other auxiliary examinations, diagnosis and then treatment for the cause of the disease. It is recommended that children and adolescents with sudden or persistent ocular swelling should seek medical attention in a timely manner to improve slit lamp microscopy and other auxiliary examinations, and then carry out targeted treatment after confirmation of the diagnosis.