Primary aldosteronism, also known as Conn's syndrome, is considered one of the most common causes of secondary hypertension or high blood pressure. Primary aldosteronism occurs when your body produces too much aldosterone, which is a hormone that controls the sodium and patassium levels in the blood. When too much aldosterone is produced, the result is too much salt (sodium) and too little potassium in the blood, which leads to hypertension. Conn's syndrome is more common in females than males and can occur at any age, but most commonly in people in their 30s and 40s. Symptoms may include muscle weakness, frequent urination, excessive thirst, or muscle twitching and cramps. Medical therapy is a good treatment option.