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How STD Crabs Spread And How To Prevent Them

Read Time: 5 mins

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Last Updated: May 8, 2026

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Categories: Informative

How STD Crabs Spread And How To Prevent Them?

STD crabs, also known as pubic lice, spread primarily through sexual contact. Lice moves from one person’s pubic hair to others during close physical contact. Pubic lice can also be transmitted via shared clothing, bedding, or towels.

What Are STD Crabs (Pubic Lice)?

Pubic lice, commonly referred to as crabs, are tiny parasitic insects that infest the coarse hair around the genitals, although they can also be found in the armpits, chest, and other body hair. These insects are grayish-white and have a crab-like appearance, with visible legs. Pubic lice are different from head lice or body lice, which are typically found on the scalp or body.

Symptoms Of Pubic Lice (Crabs)

Pubic lice infestations can cause a variety of symptoms, including:

  • Itching in the pubic region, especially at night
  • Small red bumps or irritated skin due to bites
  • Visible lice or eggs (nits) attached to the hair
  • Possible secondary skin infections from excessive scratching

If untreated, the constant scratching can cause sores or bacterial infections.

How Are STD Crabs (Pubic Lice) Transmitted?

Pubic lice are primarily spread through sexual contact, as lice are transferred from one person’s pubic hair to another’s. However, lice can also be transmitted through close physical contact in non-sexual settings, such as sharing a bed or towels. Pubic lice are not an STD in the traditional sense but can be transmitted during sexual activity.

Can STD Crabs Be Caught Without Sexual Contact?

Yes, pubic lice can spread through shared personal items, such as towels, clothing, or bedding, even without sexual contact. While pubic lice are most commonly associated with sexual activity, non-sexual transmission is also possible through close contact or by using infested items.

Is Pubic Lice Dangerous?

Pubic lice are generally not dangerous but can cause severe itching and irritation. If scratched too much, secondary skin infections can occur. In rare cases, untreated pubic lice may lead to bacterial infections, but they do not pose a major health risk.

How To Treat Pubic Lice (Crabs)?

Pubic lice can be treated effectively with:

  • Over-the-counter lice treatments, such as creams and shampoos containing permethrin or pyrethrin
  • Prescription treatments for persistent cases
  • Wash clothing, bedding, and towels in hot water to remove lice and eggs
  • Repeat treatment in 7-10 days to ensure all lice and eggs are eliminated

If you’re concerned about other sexually transmitted infections, consider our comprehensive STD panel to get tested for a wide range of STIs.

Can Crabs Be Cured?

Yes, pubic lice can be cured with proper treatment. It is essential to follow the instructions carefully to ensure the medication works effectively. Prevent reinfestation by washing all contaminated clothing and bedding thoroughly.

If you’re concerned about possible exposure to other STDs, our chlamydia testing or syphilis testing may be good options for your peace of mind.

Preventing STD Crabs (Pubic Lice)

Here are some effective prevention tips:

  • Avoid unprotected sexual contact with someone who has pubic lice
  • Use condoms during sexual activity to reduce the risk of transmission
  • Do not share personal items like towels, clothing, or bedding
  • Maintain personal hygiene and wash clothing regularly

For more comprehensive protection, consider regular HIV testing and herpes testing, which help ensure your sexual health remains in check.

When To See A Doctor For Pubic Lice

Consult with Dr. Syra Hanif, M.D., if:

  • Over-the-counter treatments don’t work
  • Itching, redness, or discomfort persists
  • You develop secondary infections from excessive scratching

Conclusion

Pubic lice, or STD crabs, are a common but manageable condition. With prompt treatment, they can be eliminated, and their spread can be prevented through safe sexual practices and personal hygiene. If you’re concerned about symptoms, early diagnosis and treatment can help avoid discomfort and secondary infections. Remember, pubic lice are treatable and curable, and you can confidently seek the appropriate care when needed at Manhattan STD Testing.

Frequently Asked Questions

Can pubic lice be passed to pets?

No, pubic lice are human-specific parasites and cannot be transmitted to pets.

Can pubic lice live on furniture or carpets?

Pubic lice typically don’t survive long away from the human body, but they can be briefly found on clothing or bedding that hasn’t been washed.

Do pubic lice cause permanent damage?

No, pubic lice do not cause permanent damage. However, untreated infestations can lead to skin infections from excessive scratching.

Can pubic lice be spread by oral sex?

Yes, pubic lice can be spread during oral sex if lice move from the pubic area to the mouth or throat.

Is it necessary to treat pubic lice if I don’t have symptoms?

Yes, even without symptoms, treating pubic lice is important to prevent them from spreading to others.

Disclaimer

This blog is for informational & educational purposes only and does not intend to substitute any professional medical advice or consultation. For any health-related concerns, please consult with your physician, or call 911.

  • About The Author

    Dr. Syra Hanif M.D.

    Board Certified Primary Care Physician

Dr. Syra Hanif is a board-certified Primary Care Physician (PCP) dedicated to providing compassionate, patient-centered healthcare.

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