7 months after ingernal hernia surgery the area is still numb and even the left side of my penis is numb. whats causing this numbness?

Sensory nerve injury: There are small sensory nerves that run in the area of the inguinal hernia repair. These nerves are sometimes cut during surgery or may be irritated by scar tissue or mesh after surgery. If small branches are damaged, they may regenerate after surgery and you may regain sensation up to one year after the surgery. Inner thigh and scrotal numbness are fairly common but penile numbness is rare.

Nerve Impairment: There are nerves that can be damaged during repair hernias. Sometimes, this is done purposefully. That is odd to say, but some surgeons divide a nerve on purpose to avoid a worse complication.. That is... Chronic pain! .. If a nerve is injured during the operation, you can be left with debilitating pain for life. Numbness can be temporary and will can return to normal in 6 months to a year.