What is a period? Brown discharge before your period may be due to starting birth control, implantation, uterine fibroids, vaginal infections, or menstruation. Also called a period, menstruation occurs when the lining of a female's uterus is shed through a flow of blood. It's a crucial part of the menstrual cycle, which is a normal …
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What is herpes? Oral herpes is usually caused by the herpes simplex 1 virus, or HSV-1. It spreads through intimate contact with an infected person through kissing and oral sex, but sharing cups, eating utensils, and other items can also pass along the virus. Oral herpes — also known as cold sores or fever blisters — is a common viral …
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How many types of COVID-19 vaccines are in development? More than 150 vaccine candidates against the COVID-19 coronavirus pandemic are in various stages of development. One from Pfizer-BioNTech was cleared for emergency use in the US in mid-December 2020. The COVID-19 pandemic caused by the SARS-CoV-2 coronavirus has afflicted millions of people worldwide. This global crisis has spurred dozens of vaccine …
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What is laryngitis? Acute laryngitis lasts less than two weeks and chronic laryngitis lasts longer than three weeks. Laryngitis is when your voice box (larynx) or vocal cords become inflamed from infection, irritation, or being overused. This inflammation can change the way your vocal cords vibrate, causing changes to your voice. Most cases of laryngitis go away by themselves in …
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Mantle cell lymphoma (MCL) facts Readers Comments 6 Share Your Story MCL is an aggressive B-cell type of non-Hodgkin's lymphoma. NHL occurs when the body produces too many abnormal lymphocytes. Mantle cell lymphoma (MCL) is a relatively rare cancer of the lymphoid cells that arise from the outer rim or mantle lymphoid follicle. The cause of MCL is unknown, although …
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What is hyperhidrosis? If you find yourself sweating excessively even when you’re not very hot, you may have hyperhidrosis. If you find yourself sweating excessively even when you’re not very hot, you may have hyperhidrosis. This condition affects about 3% of the world population. People with hyperhidrosis tend to sweat when they’re at rest and not exerting themselves.This condition is …
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Heart murmur definition and facts A heart murmur, or whooshing sound that accompanies the heartbeat, may be part of healthy heart sounds for some people. Other times, it is a sign of serious problems, like heart valve hardening or holes in the heart walls. Heart murmurs are abnormal sounds within the heart due to turbulent blood flow. Signs and symptoms …
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What is non-small cell lung cancer (NSCLC)? Readers Comments 2 Share Your Story Risk factors for lung cancer include smoking, exposure to air pollution, and genetics. Non-small cell lung cancer (NSCLC) is composed of three types of cancers that originate from lung tissue. The three types are known as adenocarcinomas, squamous cell carcinomas, and large cell carcinomas. Adenocarcinomas are slow-growing cancers that …
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What is Krintafel (tafenoquine), and how is it used? Krintafel is a prescription medicine used to treat malaria caused by a parasite called Plasmodium vivax in patients aged 16 years and older who are also receiving chloroquine to treat acute Plasmodium vivax malaria. Malaria is a serious disease of the blood that is spread by infected mosquitos. Krintafel does not …
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What is the flu? The flu in seniors will last about a week, while others may be affected for much longer. In severe cases, it can lead to death. The flu (influenza) is a seasonal virus that can lead to symptoms ranging from mild to severe. It’s a respiratory illness that infects the nose, throat, and sometimes the lungs. Some …
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