A section of bulging penile veins may be caused by physiological factors, acute injury, varicose veins of the penis and other factors.
1. Physiological factors: under normal circumstances, when the penis is erected, the surface veins can be seen bulging; after the penis is weak, it can recover by itself, which is a normal physiological performance.
2. Acute injury: for example, external force strikes, resulting in localized damage to the penis, can make the penis localized swelling symptoms, similar to the blood vessels protruding, accompanied by pain, redness, subcutaneous bruising and other symptoms.
3. Varicose veins of the penis: related to a variety of factors, such as venous thrombosis, tumors or foreign body compression, so that the blood circulation is not smooth, may lead to varicose veins on the penis, which can be manifested as a blood vessel bulge.
A bulging section of blood vessels in the penis and the presence of symptoms such as pain and redness are recommended to seek medical attention.