What causes small, raised bumps in the scrotal hair follicles without pain or itching, and what should be done about it?

Dec 03, 2025 Source: Cainiu Health

Dr. Liu Wenmin

Introduction

In general, the appearance of small, raised bumps on scrotal hair follicles without pain or itching may be caused by normal hair follicle structure, ectopic sebaceous gland hyperplasia, sebaceous cysts, scrotal eczema, or molluscum contagiosum. Patients can choose appropriate management methods based on their specific condition. It is important to maintain good daily hygiene, wash the scrotum with warm water every day, avoid prolonged sitting, and ensure adequate ventilation.

Generally, the appearance of small, raised bumps on scrotal hair follicles without pain or itching may be caused by normal hair follicle structure, ectopic sebaceous gland hyperplasia, sebaceous cysts, scrotal eczema, or molluscum contagiosum. Patients can choose appropriate management based on specific circumstances. Detailed analysis is as follows:

1. Normal Hair Follicle Structure

Hair follicles are densely distributed in the scrotal skin. In some individuals, hair follicles are naturally more prominent—especially noticeable in those with thick hair growth—which is a normal physiological phenomenon. No special treatment is required; simply maintaining cleanliness and dryness of the scrotal area in daily life is sufficient.

2. Ectopic Sebaceous Gland Hyperplasia

Abnormal development of sebaceous glands in the scrotal area may lead to localized hyperplasia and the formation of tiny raised bumps, usually without significant discomfort. Avoid frequent friction, wear loose and breathable underwear, and keep the area cool and dry. Excessive intervention is not necessary.

3. Sebaceous Cyst

When sebaceous gland ducts become blocked, secretions accumulate and form a cyst, presenting as a smooth, raised nodule. Treatment may include topical applications such as ichthammol ointment or mupirocin ointment under medical guidance, oral amoxicillin capsules, and surgical excision for larger cysts.

4. Scrotal Eczema

Eczema triggered by a moist environment or allergic reactions may initially present as follicular bumps. Treatments may include topical corticosteroids such as hydrocortisone butyrate cream or desonide cream, oral antihistamines like loratadine tablets, as prescribed, and avoiding irritants such as soap.

5. Molluscum Contagiosum

Viral infection caused by the molluscum contagiosum virus leads to follicular papules that are smooth and have a waxy sheen. Lesions can be removed by a healthcare provider using forceps, followed by disinfection with iodine tincture. Alternatively, treatment may include oral transfer factor solution and topical imiquimod cream.

Maintain good hygiene practices: wash the scrotal area daily with warm water, avoid prolonged sitting to ensure ventilation, and wear cotton, loose-fitting underwear to reduce irritation from synthetic fabrics. Seek timely medical evaluation if the bumps increase in number or size, or if pain develops.

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