What Causes Scrotal Itching?

Scrotal pruritus (itching) is commonly associated with conditions such as scrotal eczema, allergic dermatitis, and scabies. It is a very common symptom, particularly prevalent among young men.

① Internal factors

These include individuals with allergic constitutions; those experiencing significant emotional fluctuations or chronic stress; and patients with endocrine disorders, chronic gastrointestinal diseases, or immune system abnormalities—all of whom are more prone to developing scrotal pruritus.

② External factors

Wearing overly tight, poorly ventilated, or non-absorbent undergarments may irritate the scrotal skin. Prolonged exposure to sweat and friction from underwear can trigger this condition—especially during summer, when elevated temperature and humidity in the genital area create a favorable environment for irritation. Additionally, individuals with skin allergies who come into contact with parasitic mites (e.g., Sarcoptes scabiei) may develop intense pruritus, as these mites burrow into the epidermis.

Therefore, patients with scrotal pruritus should maintain a nutritionally diverse diet rich in fresh vegetables and fruits. These foods contain relatively high levels of vitamins B and C, which may help prevent and improve scrotal eczema. Conversely, they should avoid spicy and irritating foods—such as scallions, ginger, garlic, and chili peppers—as well as stimulating beverages including strong tea, coffee, and alcoholic drinks, all of which may exacerbate symptoms.