Category: Diseases Factsheet

What is Necrosis and Necrotic Tissues?

Necrosis is defined as the premature death of cells in living tissue. Necrotic tissues are, therefore, dead tissues (dead cells and debris) that result from the fragmentation of dying cells. These tissues lose their colour and might become black, yellow, green, and even white in some cases. They are generally soft, and might be characterised by

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What Is Sciatica And What Causes It?

What is sciatica and what causes it? Sciatica is characterised by pain and weakness in the lower back, the leg including the calf, the foot, and even the toes. It is the result of a malfunctioning of the sciatic nerve which is the largest nerve in the body controlling muscle movement in the lower leg,

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What Is Hyperemesis Gravidarum?

Hyperemesis Gravidarum is extreme and continuous vomiting during pregnancy. It is described as “pernicious vomiting of pregnancy” in a 2012 paper available on medreviews.com. Nausea and vomiting are common symptoms of pregnancy: they are part of the morning sickness that affects most pregnant women. However, hyperemesis gravidarum is a severe and persistent case, and only affects

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Sleep Apnea: When you stop breathing while sleeping

Sleep apnea involves arrested breathing when one is asleep. People affected by this condition stop breathing for a few seconds or minutes at some point during the night. This leads to restlessness, headaches, loud snoring, and worse, memory deficiency. We might take the blessing of breathing oh-so-easily, but, when the whole process faces little ‘glitches’

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Trichiasis: Eyelashes Growing In The Wrong Direction

Trichiasis is the condition where eyelashes grow abnormally in the wrong direction. It is very painful, and if the person is left unattended, it might grow into serious problems. Ever had to experience having eyelashes getting into your eye?! I bet noone who has felt this hurt can ever forget it – not in this

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What Is AIDS? – The Difference Between HIV and AIDS?

AIDS stands for Acquired immune deficiency syndrome. It is a deadly disease caused by a virus known as Human Immunodeficiency Virus (HIV). The HIV directly attacks the immune system of the infected person such that the body’s defence system is rendered powerless as the virus propagates throughout the body, without the latter being able to

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What Is Yersiniosis?

Yersiniosis is an infection caused by bacteria belonging to the genus Yersinia. It is the species Yersinia enterocolitica which is responsible for most infections. Otherwise, the other species, Y. Pseudotuberculosis, is also a cause of the disease.  The bacteria act at the level of the alimentary canal, most specifically at the intestines. These two species should

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What Is Salmonellosis?

Salmonellosis is an infection caused by bacteria known as Salmonella, which exist in two species further divided into many subspecies. The two species are Salmonella bongori and Salmonella enterica. Humans contract the bacteria by eating food items which are infected with the bacteria, as when meat is not properly cooked, or raw meat. The foods

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What is Complex Regional Pain Syndrome (CRPS)?

CRPS was previously known as Reflex Sympathetic Dystrophy (RSD) Syndrome. It is a nerve disorder characterised by great pain, swelling, and other severe changes in the skin. It exists as type I CRPS and type II CRPS. The former type is caused by tissue injury with no nerve injury, while the latter is related to

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What Is Q Fever?

Q fever is an infection caused by the bacterium known as Coxiella burnetii. The bacterium affects both humans and animals, like cattle, and other farm animals, and even pets like cats and dogs. Often, exposure to infected animals might lead to humans becoming infected. The Causative Agent: Bacterium Coxiella burnetii Coxiella burnetii is an obligate intracellular

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