What causes small lumps in the coronal groove?

Small bumps on the coronal sulcus may be caused by various factors, mainly including: 1. Skin folds: The penis may develop folds under different physiological conditions and during movement, creating the appearance of small bumps. 2. Folliculitis: This is an inflammation around hair follicles that may lead to the formation of small bumps, possibly accompanied by pain and itching. 3. Pearly penile papules: This is a common benign skin condition characterized by pearl-like or small skin projections, generally without discomfort. 4. Genital herpes: An infection caused by the herpes simplex virus that may result in small blisters or bumps on the skin. 5. Gonorrhea: A sexually transmitted infection that may cause lesions in the genital area, including small bumps and redness on the penile shaft. If such symptoms occur, timely medical consultation is recommended, and diagnosis should be made by a qualified physician.