After circumcision, hard flesh or hard knot is considered a normal phenomenon after surgery, pay attention to clean, avoid infection, if not accompanied by other symptoms, there is no need to worry. For circumcision or circumcision patients after the circumcision, may appear after the wound healing hard knots under the skin, is generally considered to be the surgical damage to the skin tissue, resulting in the healing process of granulation tissue hyperplasia and the formation of hard cords similar to the scar, especially for the keloid patients, more likely to appear this hard lumps. In general, if there is no accompanying infection, redness, swelling and other discomforts, clinically it is considered that no special treatment is needed, and some of them may gradually soften over time, but of course there are some that always exist, so it is recommended that they can be reviewed regularly.