The male coronal sulcus is at the lower edge of the glans of the human penis.
Male coronary groove is the junction of the glans and the body of the penis, in the lower edge of the glans, is a circle in the shape of the crown of the structure, usually wrapped in the foreskin inside, the naked eye is difficult to see, need to use the hand to turn up the foreskin, which is the glans can be exposed.
Because the male coronal groove is more secretive, it is easy to hide dirt, therefore, usually have to keep the glans coronal groove parts of the glans clean, cleaned with water once a day, in the cleaning of this part of the time, if there is a long foreskin problem, you can turn the foreskin carefully clean the glans coronal groove inside, to ensure that the dirt is cleaned, or else prone to glans inflammation.
The male coronal groove is relatively tender, usually to reduce the stimulation of the coronal groove, if the sex life is more intense, the coronal groove is easy to be caused by damage, and long-term friction stimulation, the skin tissue around the coronal groove will occur hyperplasia, the appearance of granular pimples.