Edema of the right hand may be caused by disease factors, trauma, drug factors, allergic reactions, physiological reasons, etc., depending on the specific circumstances. 1. Disease factors: including various types of nephritis, nephrotic syndrome, hypothyroidism, hyperthyroidism, primary aldosteronism, etc., may cause edema of the patient’s right hand. 2. Trauma: if the patient because of high temperature, chemical burns, etc. caused by the right hand inflammatory edema, or because of snake bites, etc., may cause the patient’s right hand edema performance. 3. Drug factors: if the patient uses antipyretic and analgesic drugs, sulfonamides and other drugs that cause allergic reactions; allopurinol, tretinoin and other drugs that cause renal damage and lead to endocrine disorders, it may also be one of the causes of edema in the patient’s right hand. 4. Allergic reaction: when the patient’s right hand is in contact with certain allergens such as animal fur and pollen, or the right hand is contaminated with animal and plant toxins, etc., it may also cause edema of the patient’s right hand. 5. Physiological factors: If a woman is in pregnancy, the phenomenon of edema of the limbs may be caused by pregnancy, which is a normal physiological phenomenon. It is important to note that if the patient appears to have edema of the right hand, should go to the hospital in time to find out the cause of the disease, and actively treat it, so as not to delay the condition.