Leukonychia (or leuconychia), is a medical term for white discoloration appearing on nails. It is derived from the Greek words leuko white and onyx nail. The most common cause is injury to the base of the nail (the matrix) where the nail is formed. Types
Leukonychia totalis
This condition consists of a whitening of the entire nail and mostly likely occurs on all nails. Whitening of one, and only one, entire nail is not recognized as a symptom of Leukonychia totalis but as a likely result of mechanical trauma. Leukonychia totalis may be a clinical sign of hypoalbuminaemia (low albumin), which can be seen in nephrotic syndrome (a form of kidney failure), liver failure, protein malabsorption and protein-losing enteropathies. A genetic condition or a side effect from taking sulphonamides (a family of antibiotics) can also cause this appearance. By 2011, only 6 cases of non-hereditary Leukonychia totalis were published.In familial cases of leukonychia totalis, this condition is caused by mutations in the PLCD1 gene, in chromosome 3p22.2, this mutation shows an autosomal dominant pattern of inheritance, but in some cases, this condition may be autosomal recessive

Leukonychia partialis
This condition consists of a whitening of parts of the nail plate in the form of small white dots. There are three different variations of partial leukonychia; punctate, transverse and longitudinal leukonychia. Some of the more serious variations of leukonychia partialis may lead to leukonychia totalis.
From the gallbladder, bile enters the intestine in individual portions. In the absence of a gallbladder, bile enters the intestine constantly, but in small quantities. Thus, it may be insufficient for the digestion of fatty foods. Postcholecystectomy syndrome treatment depends on the identified violations that led to it. Typically, the patient is recommended a dietary restriction table with fatty foods, enzyme preparations, antispasmodics, and sometimes cholagogue.If the pain is caused by biliary microlithiasis, oral ursodeoxycholic acid can alleviate the condition.A trial of bile acid sequestrant therapy is recommended for bile acid diarrhea.Functional dyspepsia is subdivided into Epigastric Distress Syndrome (EPS) and Post-Prandial Distress Syndrome (PDS). Treatment for EPS and PDS can both include proton pump inhibitors and dopamine antagonists. Tricyclic antidepressants have also been proven effective for nausea, vomiting, early satiety, impaired motility and other related symptoms.When investigation reveals no abnormalities within the abdominal cavity, the attending physician may consider Anterior cutaneous nerve entrapment syndrome (ACNES) as a possible cause. ACNES may present with pseudovisceral symptoms, including nausea, bloating, diarrhea and early satiety. References


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