Amenorrhea refers to the absence of menstrual periods in women who are of reproductive age. There are two types of amenorrhea: primary amenorrhea and secondary amenorrhea. Primary amenorrhea occurs when a girl has not...
Amebiasis
Amebiasis is a parasitic infection caused by the amoeba Entamoeba histolytica. It is a common cause of diarrhea in developing countries, and it can also cause severe disease, including amoebic dysentery and liver...
Amaurosis Fugax (AF)
Amaurosis Fugax (AF) is a medical condition that involves temporary vision loss or blindness, which usually lasts for a few seconds to minutes. It is caused by the transient ischemia of the retina or optic nerve. AF is...
Alzheimer’s Disease
Alzheimer’s disease is a chronic neurodegenerative disorder that affects cognitive function and behavior. It is the most common cause of dementia in the elderly and is characterized by the progressive loss of...
Caring For Someone With Alzheimer’s Disease
Caring for someone with Alzheimer’s disease can be a challenging task as the disease progresses and the person’s cognitive and functional abilities decline. Alzheimer’s disease is a progressive...
Altitude Sickness or Acute Mountain Sickness (AMS)
Altitude sickness, also known as acute mountain sickness (AMS), is a condition that occurs when people ascend to high altitudes too quickly without acclimatization. This condition is caused by a lack of oxygen at high...
Alpha-1-antitrypsin deficiency (AATD)
Alpha-1-antitrypsin deficiency (AATD) is a genetic disorder characterized by reduced levels of alpha-1-antitrypsin (AAT) in the blood, which leads to an increased risk of lung and liver diseases. The condition is caused...
Alopecia
Alopecia is a condition that causes hair loss. It can affect any part of the body, but most commonly affects the scalp. There are different types of alopecia, each with its own specific pathophysiology, signs, symptoms...
Allergic Rhinitis
Allergic rhinitis, also known as hay fever, is a common allergic condition that affects the nasal passages. It occurs when the body’s immune system overreacts to allergens in the environment, such as pollen, dust...
Alcoholic Hepatitis
Alcoholic hepatitis is a serious and potentially life-threatening inflammation of the liver caused by long-term excessive alcohol consumption. This condition can occur in individuals who consume large amounts of alcohol...