Patients with swollen eyelids can hang up ophthalmology, dermatology, internal medicine, the specific need to hang up what department is related to the cause of the patient. 1. Ophthalmology: Eyelid swelling is mostly considered to be caused by eye diseases, such as conjunctivitis, blepharitis, keratitis, etc. Under the stimulation of inflammation, patients may have eyelid edema, if it is caused by these diseases, patients can ophthalmology consultation. 2. Dermatology: Eyelid swelling can also be caused by allergic reactions to the skin of the eyelid area or inflammation of the hair follicles in the eyelid area and the surrounding tissues, which belong to the category of skin diseases, and patients need to consult a dermatologist. 3. Internal medicine: Eyelid swelling may also be a symptom of internal medicine, such as renal insufficiency patients, because of the decline in renal drainage function, the patient’s body fluid retention, eyelid swelling can occur. In addition, thyroid disease, heart disease, etc., can also lead to eyelid swelling, patients need internal medicine consultation. It is recommended that patients with significant eyelid swelling visit a regular hospital in a timely manner to assess their condition and follow the doctor’s instructions for treatment.