There are many reasons for numbness of the genital organs, such as external stimulation, infectious factors, allergic causes, and chronic diseases. 1. External stimulation: the genital organs are squeezed or bruised by external force, or frequent masturbation or excessive sexual life may cause swelling and lead to numbness of genital organs. 2. Infections: Infections in the genital organs, urethra and other parts of the body may also cause numbness of the genital organs. 3. Allergic causes: skin allergies in the genital organs, leading to swelling, can also lead to numbness of the genital organs. 4. Chronic diseases: neuropathy caused by diabetes, or nerve damage caused by herpes zoster, as well as lumbar spine disease, tumors of the pelvic organs and other chronic diseases may also cause numbness of the genital organs. Numbness of the genital organs, there may be other reasons, need to go to the hospital in time to check, clear cause.