A bulge on the back of the hand that hurts when pressed may be associated with skin boils, tendon cysts, and sebaceous cysts complicated by infection.
1. Skin boil is an acute infectious disease that occurs around the deep part of the hair follicle, and clinically manifests itself as a small pimple or pustule accompanied by redness, swelling, heat, and pain.
2. Tendon sheath cyst is a cystic lesion that occurs in the area of tendon sheath, mainly manifested as a small lump on the tendon sheath, and it can be moved, usually painless, but when pressed, it may produce a distended feeling of discomfort.
3. Sebaceous cysts complicated by infection, refers to the sebaceous cysts based on the occurrence of bacterial infection, as with other infectious skin diseases, there will be obvious local redness, swelling and pain phenomenon.
As the clinical manifestations may have individual differences, not excluding other causes of the back of the hand inside a small bulge and pain when pressed, it is recommended to consult a doctor in a timely manner to clarify the cause of the disease under the guidance of the doctor for symptomatic treatment.