There are risks associated with any surgery, such as bleeding, infection, and scarring of the incision. However, hernia repair surgery is relatively low risk and is one of the most common procedures in general surgery. The risk of not treating an inguinal hernia is much higher than the risk of surgery. Untreated inguinal hernias carry the risk of hernia impaction, leading to organ necrosis, which not only requires emergency surgery, but can be serious and life-threatening. Common surgical complications include: 1. recurrence of the hernia: the recurrence rate is about 1%, but because patches are now routinely used for repair, the recurrence rate has been reduced by half. To avoid recurrence patients need to avoid the following risk factors: chronic cough, constipation, smoking and obesity. 2. Infection of the patch: the incidence is less than 1% and is likely to occur in patients who smoke and are obese. 3. Chronic pain and numbness: occurs in the groin area. In order to avoid the occurrence of pain, the doctor will protect the nerve and avoid the nerve when fixing the patch. 4.Male infertility: The incidence is very low and only occurs when the spermatic cord is damaged during surgery. 5.Femoral artery and vein injury: the incidence is very low and may occur in females with femoral hernia repair.