The redness of the glans coronal groove, need to go to the hospital to carry out relevant examinations, to clarify the specific causes: 1, if the circumcision or the circumcision of patients, can appear glans coronal groove redness, because of the local chronic hypoxia, or circumcision of chronic stimulation caused by the scalp scale, there is no obvious pain, and will not be swollen, you need to do a good job of personal hygiene, clean up at regular intervals to keep the local clean can be. 2, glans inflammation, can be appear glans coronal redness, acute inflammatory period can also be accompanied by local oozing or pain, you can see the redness around the emergence of vesicles, ulcers and other manifestations. If the fungal infection, can appear local white secretion increase, accompanied by itching symptoms, need to leave the relevant secretion to do laboratory tests, after a clear diagnosis, give anti-infection or anti-fungal treatment, and to maintain local personal hygiene, such as the existence of circumcision or phimosis patients, it is recommended that the infection heals after the circumcision surgery treatment.