Conditions
Nemaline Myopathy
Nemaline myopathy is a rare, inherited muscle disorder that causes muscle weakness and poor muscle tone throughout the body. It is characterized by the…
Nasal Tumors
Nasal tumors are abnormal growths of cells that can form inside your nose (nasal cavity) or in the air-filled spaces around your nose (paranasal…
NUT Carcinoma
NUT carcinoma is a very rare and aggressive type of cancer that can develop in various parts of the body, most commonly in the…
Myopathy
Myopathy is a general term for any disease that affects the muscles, causing them to become weak or not work properly. It can lead…
Myokymia
Myokymia refers to involuntary, continuous, and undulating muscle contractions that appear as a rippling or quivering movement under the skin. These muscle movements are…
Myocardial Ischemia
Myocardial ischemia is a serious heart condition where your heart muscle does not get enough blood flow, and therefore not enough oxygen. This usually…
Myelopathy
Myelopathy is a serious condition that happens when your spinal cord becomes compressed or squeezed. This compression can disrupt the nerve signals traveling between…
Myelofibrosis
Myelofibrosis is a rare type of bone marrow cancer where the bone marrow, which normally makes blood cells, becomes scarred and cannot produce healthy…
Mycoplasma
Mycoplasma refers to a type of bacteria that can cause various infections in humans. These infections most commonly affect the respiratory system, leading to…
Myalgic Encephalomyelitis
Myalgic Encephalomyelitis (ME/CFS) is a complex, long-term illness that significantly impacts daily life. It causes extreme fatigue that doesn't improve with rest, along with…
Mucositis
Mucositis is a painful inflammation and ulceration of the mucous membranes, which are the moist linings found throughout your digestive tract, from your mouth…
Monoclonal Gammopathy of Undetermined Significance
Monoclonal gammopathy of undetermined significance (MGUS) is a condition where your body makes an abnormal protein called M protein. This protein comes from plasma…
Mitral Valve Regurgitation
Mitral valve regurgitation happens when your heart's mitral valve doesn't close tightly, causing blood to leak backward into the upper left chamber of your…
Mitral Valve Prolapse
Mitral valve prolapse (MVP) is a common heart condition where the mitral valve, located between the upper and lower chambers on the left side…
Miller Fisher Syndrome
Miller Fisher Syndrome (MFS) is a rare neurological disorder and a variant of Guillain-Barré syndrome (GBS). It occurs when your immune system mistakenly attacks…
Mild Cognitive Impairment
Mild cognitive impairment (MCI) is a condition where you experience a slight but noticeable decline in your memory or thinking skills, more than expected…
Migraines in Children
Migraines in children are severe headaches that are more than just typical head pain. They are a neurological condition causing throbbing pain, often with…
Microscopic Colitis
Microscopic colitis is a type of inflammation in your large intestine (colon) that causes chronic watery diarrhea. Unlike other forms of colitis, it cannot…
Microcytic Anemia
Microcytic anemia is a condition where your red blood cells are smaller than usual and contain less hemoglobin, the protein that carries oxygen. This…
Methemoglobinemia
Methemoglobinemia is a rare blood disorder where your red blood cells cannot properly carry oxygen throughout your body. This happens when a specific type…
Metabolic Dysfunction-Associated Steatotic Liver Disease
Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) is a common condition where too much fat builds up in your liver cells. It is not caused…
Metabolic Dysfunction-Associated Steatohepatitis
Metabolic dysfunction-associated steatohepatitis (MASH) is a serious liver condition where too much fat builds up in the liver, causing inflammation and damage. It was…
Mesenteric Lymphadenitis
Mesenteric lymphadenitis is a condition where the lymph nodes in the tissue that holds your intestines in place (mesentery) become swollen and inflamed. It…
Meningococcal Disease
Meningococcal disease is a serious and potentially life-threatening bacterial infection caused by *Neisseria meningitidis*. It can lead to meningitis, an inflammation of the brain…