Achalasia is a rare health condition that affects the esophagus, which is the tube connecting the throat and stomach. The condition can cause difficulty in swallowing along with various other symptoms.

Anal fissure refers to the tear or cuts in the lining of the anus, through which stool passes. It can cause severe pain and bleeding while emptying the bowel. Most cases of anal fissures occur among people dealing with constipation.

Achondroplasia is a genetic disorder that affects the development of bones and cartilage. It is the most common form of dwarfism and is characterized by a disproportionate body shape, with a disproportionately large head and short limbs.

Acrochordons, also known as skin tags, are a common skin condition that results in small, fleshy bumps anywhere on the body. The benign neoplasms, or bumps, are typically found on the neck, armpits, and groin areas and don’t cause any pain.

Actinic keratosis is a skin condition that occurs due to long-term exposure to the sun’s ultraviolet rays. It can affect people of all ages and lead to precancerous lesions on the skin’s surface.

Bursitis is a condition that affects the fluid-filled sacs near the joints and can cause discomfort and issues with mobility. It involves inflammation that develops due to excessive pressure or friction.

Acute Flaccid Myelitis (AFM) is a rare but potentially severe condition that affects the nervous system. It can cause paralysis, muscle weakness, and loss of reflexes in the arms and legs.

Acute respiratory distress syndrome (ARDS) is a health condition that can occur when fluid builds up in the air sacs of the lungs, making breathing difficult. It can happen suddenly and without warning, making it even more dangerous.