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Fainting in Women
May 22, 2026

Fainting is a brief loss of consciousness. It can last from seconds to 30 minutes.
Signs & Symptoms
Just before fainting, a person may feel a sense of dread and feel dizzy. She may see spots and have nausea. Her face may turn pale, she could go into a cold sweat, and she could fall over.
If a person falls and can’t remember the fall itself, she has fainted.
Causes & Risk Factors
Fainting is due to a sudden drop in blood flow or glucose supply to the brain. This causes a temporary drop in blood pressure and pulse rate. Medical reasons for this include:
- Low blood sugar (hypoglycemia). This is common in early pregnancy. It can also occur in diabetes, in persons on severe diets, etc.
- Anemia.
- Any condition that causes a rapid loss of blood. This can be from internal bleeding, such as with a peptic ulcer, a tubal pregnancy, or a ruptured cyst.
- Heart and circulatory problems.
- Eating disorders.
- Toxic shock syndrome (TSS).
- Seizures. Dehydration.
- Irregular heartbeat or heart beating too fast or too slow.
Other Causes of Fainting
- Any procedure that stretches the cervix, such as having an IUD inserted.
- Extreme pain.
- A sudden change in body position, such as standing up too fast.
- Sudden emotional stress or fright.
- A side effect of some prescription drugs, such as some that lower blood pressure.
- Recreational drugs or excessive alcohol.
- Being in hot, humid weather or a stuffy room.
What to do when someone faints: Dos
- Catch the person before she falls.
- Make sure the person is breathing and has a pulse. If not, call 911 and start CPR.
- Lie the person down with her head below the level of the heart. Raise the legs 8 to 12 inches to promote blood flow to the brain. If the person can’t lie down, have her sit down and put her head between her knees.
- Turn the person’s head to the side so the tongue doesn’t fall back into the throat and to prevent choking on vomit.
- Loosen any tight clothing, but keep the person warm, especially if it is chilly.
- Apply cool moist towels to the person’s face and neck.
What to do when someone faints: Don’ts