Penile testicles bursting and itching may be caused by scrotal eczema, contact dermatitis, genital herpes and other diseases. 1. Scrotal eczema: the etiology of scrotal eczema is not yet clear, it may be due to abnormal immune function, nervous tension, abnormal, poor hygiene habits, excessive sweating and other factors. Patients can appear localized itching, and in the scrotum area appear pimples, small blisters, flushing, swelling and other symptoms, can be accompanied by scabs, scales, manifested in the penis testicles burst skin itching. 2. Contact dermatitis: contact dermatitis is an inflammatory skin disease triggered by skin contact with external substances, the causes of which include poor hygiene habits, excessive sweating, condoms, drugs and so on. Patients can appear itching, burning, swelling and pain, blisters and other symptoms, when the blisters rupture can appear vesicles, scabs, manifested in the penis testicles burst skin itching. 3. Genital herpes: genital herpes is caused by herpes simplex virus infection. Patient symptoms for herpes, itching, burning sensation, etc., some patients can appear penis testicles burst skin itching situation. There are many reasons that lead to itchy penis testicles, patients need to consult a doctor in time.