Why Do I Sweat And Feel Sick When I Poop? Causes & Relief

Key Takeaways

• Sweating and feeling sick during a bowel movement is usually caused by a vasovagal response, a nervous system reaction to straining.
• This reaction can cause dizziness, nausea, cold sweats, and even fainting, a condition sometimes called poop syncope.
• Common culprits include constipation, straining too hard, dehydration, and standing up too fast afterward.
• Most cases are harmless and go away with better bathroom habits and hydration.
• See a doctor if you faint, have chest pain, or feel sick every time you have a bowel movement.

What Causes Sweating And Nausea When You Poop?

Sweating and nausea during a bowel movement happen because of a vasovagal response. This is a reflex where the vagus nerve overreacts to straining, causing your heart rate and blood pressure to drop suddenly.

When blood pressure drops fast, your body reacts. You may feel hot, clammy, dizzy, or nauseous. Some people also feel weak in the legs or get tunnel vision for a few seconds.

This reflex is common. Many people feel it occasionally without any health problem behind it. The trigger is almost always strain on the body during a bowel movement, not the stool itself.

What is Poop Syncope And How is it Related?

Poop syncope is fainting that happens during or right after a bowel movement. It is a type of vasovagal syncope, which is the medical term for fainting caused by a sudden nerve reflex.

The same triggers that cause sweating and nausea can push some people further into fainting. Straining hard, holding your breath, or sitting for a long time on the toilet can all play a role.

Poop syncope is more common in younger adults and is usually not dangerous on its own. However, fainting always carries a risk of injury from falling, so it should not be ignored.

Read Also: What Causes Leg Shaking During Bowel Movements?

Common Caused For Feeling Sick On The Toilet
Several everyday habits can make this reaction more likely. Knowing your triggers can help you avoid the feeling altogether.

How Constipation Makes Symptoms Worse
Constipation is one of the biggest reasons people sweat and feel sick when they poop. Hard stool requires more straining, and straining is the main cause for the vagal reflex.

When stool sits in the colon too long, it becomes harder and drier. This means more pressure is needed to pass it, which increases the chance of a vasovagal response.

Eating more fiber, drinking enough water, and not delaying bathroom trips can reduce how often this happens. Soft, regular stools require far less effort to pass.

How To Stop Sweating And Feeling Sick When You Poop
You can lower the chances of this happening with a few simple habits.

1. Drink enough water during the day so stools stay soft and easy to pass.
2. Eat fiber rich foods like fruits, vegetables, and whole grains to prevent constipation.
3. Avoid holding your breath while pushing. Breathe normally instead.
4. Sit on the toilet with your feet raised slightly, using a small stool if needed, to reduce strain.
5. Stand up slowly after finishing, and pause for a moment before walking.
6. If you feel dizzy, sit back down or lower your head between your knees until it passes.

When To See A Doctor About This Symptom
You should see a doctor if you faint, feel sick every time you poop, or notice other symptoms along with the sweating and nausea.

Warning signs that need medical attention include chest pain, a racing or irregular heartbeat, blood in your stool, or fainting that causes injury.

If this happens only once in a while and goes away quickly, it is usually not a sign of a serious problem. Frequent episodes are worth discussing with a doctor, especially if they are getting worse.