Sclerodactyly, or cavernous sclerosis of the penis, early symptoms include painful erection, hardness of the penis, and curvature of the penis. 1. Painful erection: It occurs when the penis is erected or during sexual intercourse, which will cause symptoms such as penile pain and discomfort, and may also affect sexual function. 2. Penile hardness: a hard or elastic plaque or hard knot can be palpated within the patient’s penis, which is not adherent to the skin and has varying degrees of pressure and pain. The diameter of the plaque is 0.6-6cm, and the number is 1 or more, sometimes arranged in series. The plaque is often located at the back of the penis, and the corresponding dorsal penis is deformed. 3. Penile curvature: most patients will have some degree of penile curvature during erection, that is, at the sclerosis will lead to penile upward curvature. Suffering from penile cavernous sclerosis should seek medical treatment in time, follow the doctor’s instructions combined with clinical symptoms to take appropriate treatment measures.