Amblyopia, commonly referred to as "lazy eye," is a vision development disorder that typically begins in childhood.

Hirschsprung's disease, also known as congenital megacolon, is a rare condition characterized by the absence of nerve cells in the muscles of the colon (large intestine).

Scabies is a contagious skin infestation caused by the microscopic mite Sarcoptes scabiei. These mites burrow into the top layer of the skin, where they lay eggs and cause intense itching.

Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and difficulty breathing.

Hormone deficiencies occur when the body doesn't produce enough of a particular hormone.

Osteoarthritis is a common joint disorder characterized by the degeneration of cartilage and the underlying bone in one or more joints.