Ear piercing studs are too short for some earlobes and most cartilage. This can cause the air and blood circulation to be diminished, which can lead to prolonged healing, minor complications and scarring. Jewelry that fits too closely also increases the risk of infection because it does not allow for the thorough cleaning. During normal healing body fluid containing cellular discharge and other products of the healing process are excreted from the piercing. But with inappropriate jewelry, they can become trapped around the hole. The fluid coagulates, becoming sticky and trapping bacteria against the skin. Unless thoroughly and frequently removed, this becomes an invitation to secondary infection. The design of the butterfly clasp of most gun studs can exacerbate this problem. Again, these consequences can be avoided with implant-grade jewelry that is designed for ease of cleaning and long-term wear.