
This type of shock is characterized by breathing problems, hives, itching, a swollen throat and a sudden, dramatic fall in blood pressure.

The bacteria then produce toxins that affect blood vessels, leading to a profound and life-threatening decline in blood pressure. Severe infection (septic shock): Septic shock can occur when bacteria leave the original site of an infection (most often in the lungs, abdomen or urinary tract) and enter the bloodstream.Endocrine problems: Such problems include complications with hormone-producing glands in the body’s endocrine systems specifically, an underactive thyroid (hypothyroidism), parathyroid disease, adrenal insufficiency (Addison’s disease), low blood sugar and, in some cases, diabetes.Your heart may not be able to circulate enough blood to meet your body’s needs. Heart problems: Among the heart conditions that can lead to low blood pressure are an abnormally low heart rate ( bradycardia), problems with heart valves, heart attack and heart failure.Other prescription and over-the-counter drugs may cause low blood pressure when taken in combination with high blood pressure medications. Certain medications: A number of drugs can cause low blood pressure, including diuretics and other drugs that treat hypertension heart medications such as beta blockers drugs for Parkinson’s disease tricyclic antidepressants erectile dysfunction drugs, particularly in combination with nitroglycerine narcotics and alcohol.A significant loss of blood from major trauma, dehydration or severe internal bleeding reduces blood volume, leading to a severe drop in blood pressure. Decreases in blood volume: A decrease in blood volume can also cause blood pressure to drop.

