What Causes Scrotal Itching?
Itching of the scrotum 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 prolonged stress, and patients with endocrine disorders, chronic gastrointestinal diseases, or immune system abnormalities—all of whom are more prone to developing scrotal itching.

② External factors
Wearing overly tight, poorly ventilated, or non-absorbent undergarments may irritate the scrotal skin due to sweat accumulation and friction from underwear, thereby triggering itching—especially during summer when elevated temperature and humidity in the genital area create a favorable environment for such symptoms. 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 itching should maintain a varied and nutritious diet, emphasizing fresh vegetables and fruits, which are rich in vitamins B and C—nutrients that can help prevent and improve scrotal eczema. At the same time, 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, to prevent exacerbation of symptoms.