Is a pinhole air leak on the sidewall of a tire man-made?

[AnaFitz]

It is man-made, as tire manufacturing processes do not cause such issues. Below are detailed explanations of related content: Function of small holes on tires: The small holes on the side of car tires are specifically designed by manufacturers. The primary purpose of these holes is to reduce damage to the vehicle body. These holes are used to install mudguards, which effectively shield against impacts from stones and debris, providing additional protection to the car body. Causes of tire air leaks: The most common cause of tire damage is punctures by foreign objects. Damage to the tire sidewall often occurs when the tire rubs against the curb repeatedly, leading to hidden leaks. This can also cause tire bulges, increasing the risk of a blowout. Aging of the valve stem is another factor; original valve stems on vehicles are typically made of rubber, which has a limited lifespan. Over time, the valve stem may harden, crack, or deteriorate, resulting in air leaks.