The appearance of coronal striae may be caused by physiological factors, or may be caused by diseases such as sclerosing lymphadenitis of the penis and pearly penile papules. 1. Physiological factors: there are many blood vessels around the coronal region of men, the brain sends out stimulation signals, causing the corpus cavernosum to become congested, and the veins in the coronal region circulate blood quickly, which may show the phenomenon of coronal groove striae. 2. Sclerosing lymphadenitis of the penis: the lymphatic vessels of the penis are blocked and inflammatory substances are exuded due to infection, trauma and other reasons, resulting in hardened protrusions of the local lymphatic vessels. The main manifestation is the emergence of striated swelling under the skin of the coronary groove, which is hard in texture. 3. pearly penile papules: a relatively common skin disease in men, there are many pearly milky white papules in the coronal groove of the man’s penis, the surface is smooth. There are many reasons for the coronal groove striae, patients should go to the hospital in a timely manner, improve the relevant examination, clear cause of the symptomatic treatment. Daily life should pay attention to avoid eating stimulating food, avoid exertion, change underwear diligently, pay attention to personal hygiene.