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Definition Metatarsalgia is a pain in the ball of your foot. It is often caused by wearing shoes with thin soles and high heels. This puts extra pressure on the bones in the ball of the foot. Standing or walking on a hard surface for long periods also puts added …

Description The Middle East Respiratory Syndrome (MERS) is a respiratory disease caused by a newly recognized coronavirus, MERS-CoV. It was first reported in 2012 in Saudi Arabia and is thus far linked to countries in or near the Arabian Peninsula. Laboratory-confirmed MERS has now been identified in Bahrain, Iran, Jordan, …

Definition Mouth ulcer is an ulcer that occurs on the mucous membrane of the oral cavity. Mouth ulcers are very common, occurring in association with many diseases and by many different mechanisms, but usually, there is no serious underlying cause. The two most common causes of oral ulceration are local …

What is Morgellons disease? Morgellons disease (MD) is a rare disorder characterized by the presence of fibers underneath, embedded in, and erupting from unbroken skin or slow-healing sores. Some people with the condition also experience a sensation of crawling, biting, and stinging on and in their skin. These symptoms can …

Definition Mitochondrial disease result from failures of the mitochondria, specialized compartments present in every cell of the body (except red blood cells). Mitochondria are responsible for creating more than 90% of the energy needed by the body to sustain life and support organ function. When they fail, less and less …

Definition Molar Pregnancy often referred to as Hydatidiform Mole is a rare pregnancy complication. Molar pregnancy is basically a type of gestational trophoblastic disease that occurs when tissues that instead of normally developing into a fetus, turns into an abnormal growth. The condition is characterized by unusual growth of trophoblasts, …

Definition Myocarditis is inflammation of the heart muscle (myocardium). The inflammation of the heart muscle causes degeneration or death of heart muscle cells. Myocarditis has many different causes and can result in a range of outcomes from mild (presenting briefly and resolving) to rapidly progressing fatal disease. It is differentiated …

Milroy’s Disease – Definition Milroy’s Disease is a condition that affects the normal function of the lymphatic system. The lymphatic system produces and transports fluids and immune cells throughout the body. Impaired transport with an accumulation of lymph fluid can cause swelling (lymphedema). Individuals with Milroy disease typically have lymphedema …