A hernia patch is a synthetic material that is primarily used in hernia surgery. Hernia patches are synthetic materials of various types. The most widely used are medical polypropylene and polyester patches, which are inert materials that are usually not absorbed by the body but are compatible with the surrounding tissues and generally do not have toxic side effects. Hernia patches are mainly used in hernia surgeries, and are usually placed in weak spots in the abdominal wall. After a period of time, the patch will fuse and fix with the surrounding tissues, increasing the stiffness of the surrounding tissues and being able to withstand enough pressure in the abdominal cavity so that the contents of the abdominal cavity will not flow out easily. If hernia patch repair is needed to treat hernia, you should take professional doctor’s advice and choose the right material to avoid adverse consequences.