The possible causes of penile skin edema: 1. inflammation such as circumcision, glansitis, can lead to local skin edema and redness, exudation, accompanied by pain and other changes. 2. the occurrence of systemic hypoproteinemia, can cause penile skin edema, but also with other parts of the body edema, such as scrotal skin edema or with bilateral lower limbs edema, eyelid swelling and other manifestations. This is mostly due to the low protein content in the body, which causes fluid to seep into the tissue interstices and result in obvious edema, which is usually not accompanied by any painful sensation in the penis, but only manifests as simple indurated edema, that is, indurated pits appear when pressed with the hand. 3. Lymphogenic edema, commonly seen in inguinal lymphadenitis or with filariasis, which can lead to chronic lymphangitis, can occur in the skin of the penis. edema, which can also be accompanied by pain in the groin area, touching enlarged lymph nodes, etc.