How Likely Is It to Get TSS from a Menstrual Cup?

Understanding the Risk & How to Stay Safe

If you’ve ever used a tampon, you’ve likely heard of Toxic Shock Syndrome (TSS)—a rare but serious bacterial infection. But what about menstrual cups?

“Can menstrual cups cause TSS?”
“Is it safer than using tampons?”
“How do I reduce the risk?”

These are smart questions to ask when choosing a period product. Let’s break down the facts about TSS, how it relates to menstrual cups, and what you can do to stay safe.

🧬 What Is Toxic Shock Syndrome (TSS)?

TSS is a rare but potentially life-threatening condition caused by toxins released from Staphylococcus aureus (a common bacteria) or Streptococcus bacteria. It can lead to sudden symptoms like:

  • High fever

  • Vomiting

  • Rash (like a sunburn)

  • Muscle aches

  • Dizziness or fainting

  • Organ failure in extreme cases

TSS has been strongly linked to tampon use, especially when worn too long or with super-absorbent products.

🩸 Can You Get TSS from a Menstrual Cup?

Yes—but it’s extremely rare.

While tampons absorb menstrual blood, menstrual cups collect it, creating less of an environment for bacteria to grow. Still, a few very rare cases of TSS related to menstrual cups have been reported.

A widely cited 2015 study published in Applied and Environmental Microbiology found that:

  • Menstrual cups did not encourage more bacterial growth than tampons

  • But improper use (e.g., small cuts from insertion, leaving it in too long) could create a risk

⚠️ The risk is very low, but not zero. Proper hygiene is key.

📊 How Rare Is It?

  • Tampon-related TSS occurs in 1–3 cases per 100,000 people per year

  • Fewer than 10 cases globally have been linked to menstrual cup use since their invention in the 1930s

  • Compared to tampons, menstrual cups have a much lower TSS risk

✅ Menstrual cups are considered safer than tampons in terms of TSS—when used correctly.

🧼 How to Prevent TSS with a Menstrual Cup

The risk of TSS can be greatly minimized by following a few simple guidelines:

1. Empty and Clean Every 8–12 Hours

  • Don’t leave the cup in for more than 12 hours

  • Empty more frequently if you have a heavy flow

2. Wash Your Hands Before and After

  • Bacteria on your hands can enter the vaginal canal during insertion or removal

3. Sterilize Between Periods

  • Boil your cup for 3–5 minutes at the end of each cycle

  • Store it in a breathable bag, not an airtight container

4. Insert Gently

  • Avoid scratching or tearing the vaginal wall during insertion

  • Trim the stem if it's too long or irritating

5. Avoid If You’ve Had TSS Before

  • If you’ve had TSS in the past, talk to your doctor before using any internal menstrual product

🩺 When to Seek Medical Attention

If you experience any of these symptoms while using a menstrual cup (or any period product), remove the product immediately and seek urgent medical care:

  • Sudden high fever

  • Vomiting

  • Diarrhea

  • Dizziness or fainting

  • Rash (especially on palms or soles)

  • Muscle aches or confusion

Early treatment is effective, and TSS is curable when caught quickly.

💬 Final Thoughts

So, how likely is it to get TSS from a menstrual cup?

👉 Very unlikely.
Menstrual cups are one of the safest period products available when used and cleaned correctly. While no internal product is 100% risk-free, cups are significantly lower risk than tampons—and they’re reusable, eco-friendly, and cost-effective.

🩷 Want a safe, beginner-friendly menstrual cup made with medical-grade materials?
Browse trusted options at NYXCOLLECTION where safety and comfort come first.

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