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Definition Osgood-Schlatter Disease is a condition that happens when a tendon in the knee (the patellar tendon) pulls against the top of the shinbone. This causes pain in the knee and the upper shin. Tendons are bands of tissue that connect muscles to bones. The patellar tendon pulls on an …

What is osteochondritis dissecans? Osteochondritis dissecans is a condition that occurs in the joints (the place where the end of one bone meets the end of another bone) when a lack of blood to the joint causes the bone inside to soften. This results in a small piece of the …

Orthopnea definition Orthopnea is the shortness of breath that happens while a person lying flat. The shortness of breath is followed by a tightness feeling in the chest and the feeling is as if he or she is not able to get enough oxygen for proper breathing. This occurs usually …

Definition Overactive bladder is a health condition that causes a variety of symptoms, many of which can cause feelings of embarrassment. Dealing with these symptoms can sometimes cause you to want to isolate yourself or limit your social and work life activities to avoid feeling uncomfortable. The most common symptoms …

Introduction Osteomyelitis is the bone infection that occurs due to the infection of bacteria in the bone. Infection is caused by the bacterium Staphylococcus aureus and other bacteria’s can also cause it. Germs usually infect into the body skin through open wounds and travel to the bone through the bloodstream. …

Introduction Orchitis is an inflammatory disorder occurring in one or both testicles of males, widely caused by various types of bacterial and viral infections. It is a type of infection may also be a progression of epididymitis, an infection with the tube that carries semen from the testicles. This condition …

Definition Osteomalacia means soft bones. Bone is a living, active tissue that’s continually being removed and replaced. This process is known as bone turnover. Bone consists of a hard outer shell (the cortex) made up of minerals, mainly calcium and phosphorus, and a softer inner mesh (the matrix) made up …

Definition Opisthorchiasis is an infection caused by either of the two parasite worms, the cat liver fluke, or scientifically called Opisthorchis felineus  (also known as Opisthorchis tenuicollis), or the Southeast Asian liver fluke (called as Opisthorchis viverrini). The term “fluke” means flatfish, since these parasites are flat. Opistorhoz in fish …