What reason is testicle itch below penis?

Experts pointed out that the causes of testicular itching may be balanitis prepuce, contact dermatitis, drug eruption and scrotal eczema. ...

1. Men with balanitis prepuce or phimosis often suffer from chronic inflammatory reaction due to scaling in the coronal sulcus of prepuce, and are prone to condyloma acuminatum and often feel itchy locally. Regularly clean and remove scale in time, and circumcise if necessary.

2. Contact dermatitis A few men with allergic constitution, when wearing underwear made of chemical fiber raw materials, because the clothes are close to the perineal skin and the parts are easily soaked by sweat, are prone to dermatitis reactions such as erythema and papules on the skin in contact with underwear, leading to itching. Some men who use condoms can also cause contact dermatitis of penis because they are allergic to rubber. When this happens, you should stop using allergic substances immediately. 3. Scrotal eczema, commonly known as "hydrangea wind", is mainly characterized by flushing and swelling of scrotal skin or accompanied by exudation and desquamation. Because of severe itching, scrotal skin can be thickened and lichenized after scratching. Patients should avoid alcohol and spicy substances, and the treatment should be carried out under the guidance of a doctor.

4. Crabs Crabs have special hooked claws that cling to the pubic hair area and the skin around the anus. Their bites and saliva toxin stimulation can cause local skin itching, folliculitis and eczema-like changes. Most couples are sick at the same time and should seek medical treatment. 5. Men with drug eruption who are allergic to sulfonamides and antipyretic and analgesic drugs are prone to fixed drug eruption at the junction of penis glans and skin mucosa and around anus when using such drugs carelessly. It is characterized by local round or oval erythema, which is easy to be scratched, eroded and oozing, causing itching due to infection. After drug eruption, relevant sensitizing drugs should be stopped immediately, and antihistamines or hormone drugs should be used for treatment. 6. Men with tinea cruris and tinea buttock are obese and sweaty. Because the genitals are sweaty and wet, it is easy to breed fungi and cause tinea cruris or tinea buttock, which is characterized by annular red papules at the root of thighs or buttocks, often accompanied by desquamation and itching. Change underwear frequently to keep local skin dry. 7. After scabies are infected with scabies, nodular lesions on the scrotum are often the most difficult to subside, which often leads to scrotal itching, even for several months.