Teen sexual and reproductive health can feel confusing because of rumors, social media myths, pressure, embarrassment, and misinformation online.

This TeenThreads guide explains sexually transmitted infections (STIs), menstrual health, contraception, and safer sex in a factual, respectful, teen-focused way.

TeenThreads goal: help teens make informed, safer, healthier decisions while understanding consent, boundaries, protection, and body awareness.

Important: This page is educational and does not replace medical care. If you have symptoms, pain, unusual discharge, possible STI exposure, pregnancy concerns, or questions about your body, talk to a healthcare professional.

Quick Jump

• Sexually Transmitted Infections (STIs)
• Menstrual Health
• Contraception & Safe Sex
• Consent & Boundaries
• When to Get Help
• 20 Quiz Questions

Normal:

• Having questions about puberty, periods, sex, or protection
• Wanting factual information
• Learning how to protect yourself and others

Unsafe or concerning:

• Pressure, coercion, or fear in relationships
• Unprotected sexual activity
• Ignoring STI symptoms
• Relying on myths instead of medical facts
• Feeling unable to say “no” or set boundaries

STIs are infections that can spread through sexual contact. Some STIs may cause symptoms, while others may not show symptoms at all.

Common STIs teens may hear about

• Chlamydia
• Gonorrhea
• Herpes
• HPV (human papillomavirus)
• HIV
• Syphilis

Possible STI symptoms

• Pain or burning during urination
• Unusual discharge
• Rashes, sores, or bumps
• Pelvic pain
• Itching or irritation
• Flu-like symptoms in some cases

TeenThreads truth:
Some STIs have no symptoms, which is why testing matters.

Ways to reduce STI risk

• Use condoms or barriers correctly every time
• Get tested if sexually active
• Communicate openly with partners
• Avoid pressure or unsafe situations
• Get recommended vaccines like HPV and hepatitis vaccines

Important reminder

Having an STI does not make someone “dirty” or “bad.” STIs are medical conditions, and many are treatable or manageable with medical care.

Learn more:

CDC – Sexual Health

CDC – Sexually Transmitted Infections

MedlinePlus – STIs

NHS – Sexual Health

Periods are a normal part of reproductive health for many teens. Cycles can change during adolescence because hormones are still developing.

Common period symptoms

• Cramps
• Bloating
• Fatigue
• Mood changes
• Headaches
• Breast tenderness

Ways to manage cramps

• Heating pads or warm compresses
• Light movement or stretching
• Hydration
• Rest and sleep
• Over-the-counter medication when used safely and according to directions

Period products

• Pads
• Tampons
• Period underwear
• Menstrual cups

Different products work for different bodies and comfort levels.

See a doctor if

• Pain is severe
• Bleeding is extremely heavy
• Periods disappear unexpectedly
• Cycles are extremely irregular for a long time
• Symptoms interfere with school or daily life

Learn more:

Office on Women’s Health – Menstrual Cycle

MedlinePlus – Menstruation

NHS – Periods

Contraception refers to methods used to help prevent pregnancy. Some methods also help reduce STI risk.

Barrier methods

• External condoms
• Internal condoms
• Dental dams

Barrier methods can help reduce STI transmission risk when used correctly.

Other birth control methods

• Birth control pills
• IUDs
• Implants
• Shots/injections
• Patches
• Rings

Different methods have different benefits, risks, side effects, and effectiveness rates.

Emergency contraception

Emergency contraception may help reduce pregnancy risk after unprotected sex or contraception failure. It works best as soon as possible after the event.

TeenThreads truth:
Consent, communication, protection, and respect matter more than pressure or popularity.

Safe sex basics

• Respect consent every time
• Use protection correctly
• Communicate openly
• Get tested when appropriate
• Never pressure or force someone

Learn more:

CDC – Contraception

FDA – Birth Control Guide

Office on Women’s Health – Birth Control Methods

MedlinePlus – Birth Control

Consent means clear, voluntary agreement between people. Consent can be withdrawn at any time.

Consent is NOT:

• Pressure
• Fear
• Manipulation
• Threats
• Silence
• Being too intoxicated to choose clearly

Healthy relationship basics

• Respect boundaries
• Communicate honestly
• Listen to each other
• Never pressure someone sexually
• Respect “no” immediately

• Possible STI symptoms
• Unprotected sex and concern about pregnancy or STIs
• Severe pelvic pain or heavy bleeding
• Pressure, coercion, or unsafe sexual situations
• Fear, abuse, or threats in relationships
• Symptoms that affect daily life or safety

If you are in immediate danger or experiencing sexual violence, contact emergency services or a trusted adult immediately.

• CDC – Sexual Health
• CDC – STIs
• CDC – Contraception
• Office on Women’s Health
• FDA – Birth Control Guide
• MedlinePlus – STIs
• NHS – Sexual Health
• HRSA – Find a Health Center

• 988 Suicide & Crisis Lifeline:
  https://988lifeline.org/
• RAINN Sexual Assault Hotline:
  https://www.rainn.org/
• Find Health Services:
  https://findahealthcenter.hrsa.gov/

1. What does STI stand for?
   Answer: Sexually transmitted infection.
2. True or false: Some STIs have no symptoms.
   Answer: True.
3. Name one common STI.
   Answer: Chlamydia, gonorrhea, herpes, HPV, HIV, or syphilis.
4. What is one possible STI symptom?
   Answer: Burning during urination, sores, discharge, or pelvic pain.
5. Can condoms help reduce STI risk?
   Answer: Yes.
6. What is menstruation?
   Answer: A normal part of the reproductive cycle involving bleeding from the uterus.
7. Name one common period symptom.
   Answer: Cramps, bloating, fatigue, or headaches.
8. Name one product used during periods.
   Answer: Pads, tampons, menstrual cups, or period underwear.
9. True or false: Severe period pain should always be ignored.
   Answer: False.
10. What is contraception?
    Answer: Methods used to help prevent pregnancy.
11. Name one barrier method.
    Answer: Condoms or dental dams.
12. What is emergency contraception?
    Answer: A method that may help reduce pregnancy risk after unprotected sex or contraceptive failure.
13. True or false: Consent can be withdrawn at any time.
    Answer: True.
14. Is pressure or manipulation considered consent?
    Answer: No.
15. Name one healthy relationship behavior.
    Answer: Respecting boundaries or communicating honestly.
16. Should teens talk to healthcare professionals about sexual health concerns?
    Answer: Yes.
17. What vaccine can help reduce HPV-related disease risk?
    Answer: The HPV vaccine.
18. Can STIs usually be treated or managed medically?
    Answer: Many can.
19. What should someone do if they feel unsafe or pressured sexually?
    Answer: Tell a trusted adult or seek help immediately.
20. What is the TeenThreads main message?
    Answer: Knowledge, consent, protection, respect, and healthcare matter.