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    STI & Genital Symptoms

    Genital Bumps: STD or Not? Common Causes and Red Flags

    Genital bumps can be harmless or an STI. Learn common causes, how they differ, red flags, and what to do next.

    January 2026Evidence-based
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    Important Safety Information

    • • This information is for education only—not a diagnosis.
    • • If you have severe pain, fever, spreading rash, or difficulty urinating, seek urgent care.
    • • If you think you've been exposed to an STI, get tested.

    Quick Comparison: Common Types of Genital Bumps

    Type Appearance Painful? STI?
    Pimple/Folliculitis White/yellow head, at hair follicle, solitary Mildly tender No
    Herpes Blister Grouped blisters, clear fluid, becomes sore Yes, often painful Yes
    Genital Wart (HPV) Flesh-colored, soft, cauliflower-like texture Usually painless Yes
    Molluscum Dome-shaped, pearly, central dimple Painless Can be
    Cyst Round, firm, under skin, slow-growing Usually painless No
    Fordyce Spots Tiny, pale yellow/white, scattered Painless No
    Ingrown Hair Red bump with visible hair, after shaving Can be tender No

    Common Harmless Causes of Genital Bumps

    Folliculitis (Infected Hair Follicles)

    Red, pimple-like bumps at the base of hair follicles. Often caused by shaving, friction, or sweating. May have a white or yellow center with pus. Usually resolves on its own in a few days with good hygiene.

    Ingrown Hairs

    Hairs that curl back into the skin, causing red, sometimes painful bumps. Common after shaving or waxing. You may see the trapped hair beneath the skin surface. Avoid picking—let it work its way out naturally.

    Sebaceous Cysts

    Round, firm lumps under the skin caused by blocked oil glands. Usually painless and slow-growing. Can occur anywhere on the body including genitals. Only need treatment if infected or bothersome.

    Fordyce Spots

    Tiny (1-2mm), pale yellow or white bumps—visible oil glands. Completely normal and present in most adults. Found on the shaft of the penis, labia, and around the mouth. No treatment needed.

    Pearly Penile Papules

    Small, dome-shaped bumps around the head of the penis. Completely normal anatomical variation present in many men. Not an STI and don't require treatment. Often confused with warts but are symmetrical and uniform.

    Skin Tags

    Soft, flesh-colored growths that hang off the skin. Common in areas of friction like the groin. Not contagious and not an STI. Can be removed if bothersome but aren't medically necessary to treat.

    STI-Related Causes of Genital Bumps

    Genital Herpes (HSV-1 or HSV-2)

    Appearance: Grouped, fluid-filled blisters that break into shallow, painful ulcers. Often preceded by tingling or burning.

    Key features: Painful, recurrent outbreaks in same area, flu-like symptoms in first outbreak. Manageable with antiviral medications.

    Genital Warts (HPV)

    Appearance: Flesh-colored, soft bumps that may be flat or raised. Often have a rough, cauliflower-like texture. Can appear singly or in clusters.

    Key features: Usually painless, may itch slightly. Can be treated by healthcare provider. HPV vaccination prevents most wart-causing strains.

    Molluscum Contagiosum

    Appearance: Small (2-5mm), dome-shaped bumps with a shiny, pearly surface and characteristic central dimple or pit.

    Key features: Usually painless, can spread to other body areas or to partners. Often self-resolves in 6-12 months but can be treated to prevent spread.

    Syphilis (Chancre)

    Appearance: Single, painless, round sore with raised edges and a clean base. Appears at the site of infection.

    Key features: Painless (unlike herpes), heals on its own in 3-6 weeks BUT infection remains. Easily curable with antibiotics. Must be treated.

    Red Flags: When to Seek Medical Care

    Get Medical Attention If:

    • Painful ulcers or open sores—especially if new
    • Clustered blisters that break and weep
    • Cauliflower-like growths that are multiplying
    • Rapidly spreading bumps
    • Fever or swollen lymph nodes with genital symptoms
    • Bumps that don't heal after 2 weeks
    • New sexual partner and now have symptoms

    What to Do Next

    1

    Don't Pop or Pick

    Squeezing bumps can spread infection, cause scarring, and make diagnosis harder. Leave them alone.

    2

    Avoid Sexual Contact

    Until you know what's causing the bumps, avoid sex to prevent potential transmission.

    3

    Take Note of Changes

    Document when bumps appeared, if they're changing, and any other symptoms. This helps your healthcare provider.

    4

    Get Evaluated

    If bumps are concerning, new, or accompanied by other symptoms, see a healthcare provider for proper diagnosis.

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    Medical Disclaimer: This article is for educational purposes only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions about a skin condition. If you think you may have a medical emergency, call your doctor or emergency services immediately.