What causes low blood pressure?

What causes low blood pressure?

It's a sheer coincidence I bumped into your question while I myself was researching about the causes of low BP. There are no clear causes as such but you can deduce it with certain signs like

- pregnancy
- hormonal problems like thyroid, low blood sugar
- over the counter medication
- heart failure
- heat stroke
- liver disease

Tell you what rather than me repeating the same info, why don't you check it out yourself. There's this site called www.mediangels.com which is almost like a goldmine of all the information I needed. let me get back to my research and you carry on with yours. Cheers!

low HB can b one reason..

Main Cause is:-
Empty Stomach in Fasts
Heridity
adopt yoga and naturopathy in your daily routine.

Naturopathic Medicine | Alternative Therapists

Low BP caused by medications

Many medication drugs can cause low blood pressure, including

diuretics and other drugs that treat high blood pressure;
heart medications such as beta blockers;
drugs for Parkinson's disease;
tricyclic antidepressants; sildenafil (Viagra), particularly in combination with nitroglycerine; narcotics; and alcohol.
Some over-the-counter medications can cause low blood pressure when taken in combination with medications used to treat high blood pressure.

Conditions that can cause low blood pressure

Some medical conditions can cause low blood pressure. These include:

Pregnancy. Because a woman's circulatory system expands rapidly during pregnancy, blood pressure is likely to drop. During the first 24 weeks of pregnancy, systolic pressure commonly drops by five to 10 mm Hg and diastolic pressure by as much as 10 to 15 mm Hg. This is normal, and blood pressure usually returns to your pre-pregnancy level after you've given birth.
Heart problems. Some heart conditions that can lead to low blood pressure include extremely low heart rate (bradycardia), heart valve problems, heart attack and heart failure. These conditions may cause low blood pressure because they prevent your body from being able to circulate enough blood.
Endocrine problems. An underactive thyroid (hypothyroidism) or overactive thyroid (hyperthyroidism) can cause low blood pressure. In addition, other conditions, such as adrenal insufficiency (Addison's disease), low blood sugar (hypoglycemia) and, in some cases, diabetes, can trigger low blood pressure.
Dehydration. When you become dehydrated, your body loses more water than it takes in. Even mild dehydration can cause weakness, dizziness and fatigue. Fever, vomiting, severe diarrhea, overuse of diuretics and strenuous exercise can all lead to dehydration.

Far more serious is hypovolemic shock, a life-threatening complication of dehydration. It occurs when low blood volume causes a sudden drop in blood pressure and a reduction in the amount of oxygen reaching your tissues. If untreated, severe hypovolemic shock can cause death within a few minutes or hours.

Blood loss. Losing a lot of blood from a major injury or internal bleeding reduces the amount of blood in your body, leading to a severe drop in blood pressure.
Severe infection (septicemia). Septicemia can happen when an infection in the body enters the bloodstream. These conditions can lead to a life-threatening drop in blood pressure called septic shock.
Severe allergic reaction (anaphylaxis). Anaphylaxis is a severe and potentially life-threatening allergic reaction. Common triggers of anaphylaxis include foods, certain medications, insect venoms and latex. Anaphylaxis can cause breathing problems, hives, itching, a swollen throat and a drop in blood pressure.
Lack of nutrients in your diet. A lack of the vitamins B-12 and folate can cause anemia, a condition in which your body doesn't produce enough red blood cells, causing low blood pressure.

Thankyou people for providing such wonderful information.
Dehydration can also cause low blood pressure. When one becomes dehydrated, body loses more water than it requires which leads to reduction in oxygen level reaching your tissues and finally causes low blood pressure.

If you're pregnant, there's a good chance your pressure may drop. This is normal but gets you checked if it becomes too recurrent.

Then tell us what are precaution should be taken to overcome the low blood pressure.