What are the little granules growing under the testicles?
Dec 01, 2025
Source: Cainiu Health
Dr. Liu Wenmin
Introduction
Small granules appearing beneath the testicles may be caused by ectopic hyperplasia of sebaceous glands, genital warts (condyloma acuminatum), scrotal eczema papules, folliculitis, or molluscum contagiosum. Ectopic hyperplasia of sebaceous glands: This condition results from abnormal development of sebaceous glands in the local area, forming tiny granules that are usually skin-colored or pale yellow, soft in texture, and cause no pain or itching. It is typically harmless, considered a normal physiological variant, and requires no special treatment.
Generally, small granules appearing under the scrotum may be caused by ectopic sebaceous glands, genital warts (condyloma acuminata), scrotal eczema papules, folliculitis, or molluscum contagiosum. Specific analyses are as follows:
1. Ectopic sebaceous glands: Caused by abnormal development of local sebaceous glands, forming tiny granules that are usually skin-colored or pale yellow, soft in texture, and cause no pain or itching. This condition is typically harmless and considered a normal physiological variation, requiring no special treatment.
2. Genital warts: Caused by infection with human papillomavirus (HPV). Initially appear as small, pale red papules that gradually increase in size and number, with a rough surface resembling cauliflower or papillary projections. May be accompanied by itching or a foreign body sensation. This condition is contagious and requires timely treatment.
3. Scrotal eczema papules: Caused by prolonged moisture, friction, or allergic reactions leading to eczema. Presents as millet-sized red or skin-colored papules, often associated with significant itching. Scratching may lead to ulceration and crusting. Medical treatment is needed to reduce inflammation and relieve itching.
4. Folliculitis: Inflammation caused by bacterial infection of hair follicles, resulting in small red bumps, sometimes with white pus at the tip. May cause mild pain or itching. Often due to inadequate hygiene or excessive sweating. Requires antibacterial treatment.
5. Molluscum contagiosum: Caused by infection with the molluscum contagiosum virus. Lesions appear as dome-shaped papules with a smooth surface and central dimpling. Squeezing may express a white, cheese-like substance. This condition is contagious and requires professional removal and measures to prevent spread.
Avoid squeezing or scratching the affected area upon discovery. Maintain cleanliness and dryness of the region. If the number of granules increases, or if pain, itching, or abnormal discharge occurs, seek medical attention promptly for accurate diagnosis.
