Undernutrition—not getting enough nutrients—may simply be the result of an inadequate diet or may be due to any of a wide range of disorders.
For example, it may result from diseases in which the absorption of nutrients is impaired, such as cystic fibrosis , celiac disease , Crohn’s disease , ulcerative colitis , and giardiasis or similar parasitic intestinal infections. Various long-term problems that cause nausea, vomiting, loss of appetite, or diarrhea may also lead to undernutrition.
These include some types of cancer, liver disease, and some respiratory disorders.
Undernutrition may also be a feature of various mental health problems or nervous system disorders, such as anorexia , depression , dementia , and alcohol misuse.
General symptoms include tiredness, weakness, weight loss, poor concentration, low mood, frequent illnesses, and a slow recovery time from illness.
In children, undernutrition may cause slower than normal growth.
Treatment of undernutrition depends on the underlying cause and the degree of deficiency, but it may involve dietary changes or nutrient supplements

Othere related diseases

ORAL CANCER
Also known as mouth cancer, oral cancer is a cancerous tumor of the lip, tongue, lining of the mouth, or gums. Lip cancer and tongue cancer are the most common ...

PANCREATIC CANCER
Pancreatic cancer is relatively rare overall but is a common cause of cancer deaths, because it is often not diagnosed until it has reached an advanced stage. <...

PANCREATITIS
Pancreatitis is inflammation of the pancreas. Acute (sudden-onset) pancreatitis may be caused by gallstones, alcohol abuse, an abdominal injury, a viral infecti...

PERITONITIS
Peritonitis is inflammation of the peritoneum, the membrane surrounding the abdominal organs and lining the abdominal wall. It is caused by infection, usually o...

POLYP
Also called bowel polyps or colorectal polyps, these are growths that project out from the lining of the colon or rectum. In most cases, the cause is unknown. <...

PROCTITIS
Proctitis is inflammation of the rectum. It commonly occurs as a feature of diseases such as ulcerative colitis, Crohn’s disease, amebiasis , schistosomiasis ...

RECTAL PROLAPSE
In a rectal prolapse, the lining of the rectum protrudes outside the anus. It is often a result of increased pressure in the abdomen due, for example, to consti...

SALIVARY GLAND PROBLEMS
Parotid tumor Parotitis Parotid stone A stone can form in a salivary gland, such as a parotid gland, causing a visible swelling on the outside of the mouth or...