Ulcers in the coronal groove of the penis may be caused by circumcision, syphilis, penile cancer and so on.
1. Inflammation of the foreskin and glans penis: when there are abnormalities of the penis such as long foreskin and prepuce, it is easy to make the local infection of the penis lead to inflammation of the glans penis, which can be manifested as localized swelling, ulceration or erosion at the coronal sulcus of the penis.
2. Syphilis: a chronic sexually transmitted disease caused by syphilis spirochete infection, which can involve the whole body with clinical symptoms. Damage to the penile mucosa can be seen at the penile coronal groove, which is manifested as localized pimples, abscesses, ulcers and other symptoms.
3. Penile cancer: long-term stimulation of chronic inflammation and other factors can lead to malignant tumor of penis, which can be originated from the head of penis, coronal groove and inner plate of prepuce, etc. It mainly manifests as cauliflower-like lumps, ulcers and other symptoms on the glans or coronal groove of penis.
Ulcers at the coronal groove of the penis may also be other causes, it is recommended to go to the hospital, to clarify the specific cause of the disease, standardized treatment under the guidance of the doctor.