Understanding Necessary and Sufficient Causes in Science and Medicine

What does it mean to say that “A causes B?” If you think about it, it’s not so simple. Scientists, however, need to be a little clearer. Ghislain & Marie David / de Lossy Cultura / Getty Imagse They need to know if exposure to a toxin always makes people sick or only sometimes. They need to understand if a nasty symptom can be triggered by one virus or several....

April 18, 2025 · 1 min · 138 words · Veronica Sims

Understanding OTC Diarrhea Medicines

Antidiarrheals are used for acute, non-life-threatening situations, such asviralgastroenteritis(stomach flu). Over-the-counter (OTC) antidiarrheal medications are found in most supermarkets, drug stores, and pharmacies. Grace Cary / Getty Images For most adults, diarrhea happens occasionally and goes away on its own. Grace Cary / Getty Images In these cases, the cause probably remains a mystery, and medical intervention usually isn’t necessary. People with IBD should follow their healthcare provider’s advice to manage symptoms....

April 18, 2025 · 2 min · 326 words · Jane Casey

Understanding Perineal Hernia

A perinealherniais a protrusion of organs and tissues into the abdominal cavity. It develops when thepelvic floor musclesbecome too weak to keep the organs and tissues in place. In some cases, a person can be born with a perineal hernia. The Good Brigade / Getty Images The only treatment option available is surgery. This article explains everything you should know about perineal hernias. Perineal hernias are rare types of hernias triggered by weakness in the transverse perineal muscle....

April 18, 2025 · 3 min · 431 words · Darryl Dean

Understanding Peritonsillar Abscess (Quinsy)

Symptoms Asore throatis one of the most common complaints before a peritonsillar abscess forms. More research is needed to understand these causes. Typically, the pus is removed and antibiotics are continued for 10 to 14 days to treat your infection. milanvirijevic / Getty Images One 2022 study of 601 people found that 68 (about 11%) experienced complications. Inpatient care for peritonsillar abscess is less common but hospitalization may be needed....

April 18, 2025 · 1 min · 128 words · Christopher Dean

Understanding pH Balance in the Body

The pH balance plays an important role in the chemical makeup of the human body. The human body is slightly alkaline with an average pH between 7.35 and 7.45. Having a balancedvaginal pHalso helps keep the vagina free of infection. JazzIRT /E+ / Getty Images Complications of diabetes can lead to blood with low pH levels. JazzIRT /E+ / Getty Images What Is pH Balance? pH is a measure of how acidic or alkaline a substance is....

April 18, 2025 · 2 min · 386 words · Mario Miller

Understanding Pityriasis Rosea vs. Guttate Psoriasis

Pityriasis roseais a rash that typically appears on the upper arms and legs, trunk, or neck. It is sometimes confused with a throw in of psoriasis calledguttate psoriasisbecause skin symptoms of each might appear similar. Guttate psoriasis appears as red, scaly, small, teardrop-like spots on the skin. dimid_86 / Getty Images It primarily affects children and young adults. It sometimes means that you might developplaque psoriasislater on. Pityriasis Rosea and Psoriasis Arent the Same Pityriasis rosea and psoriasis have some things in common....

April 18, 2025 · 4 min · 737 words · Joseph Morrow

Understanding Prurigo Simplex

Prurigosimplex is a form ofskin disease. The term prurigo is used to describe the presence of spots on theskin that are extremely itchy. The bumps associated with prurigo simplex are similar to bug bites. Asia Vision / Getty Images Other skin diseases also develop prurigo but are not the same as prurigo simplex. In prurigo simplex, itchy bumps develop without any provocation. This article discusses the causes, symptoms, and treatment options for prurigo simplex....

April 18, 2025 · 2 min · 344 words · Mark Black

Understanding Rectal Prolapse Surgery

A rectopexy is often performed when there is a protrusion of the rectum through the anus known as aprolapse. It either falls or slides down through the anus. The procedure is also known as the rectal prolapse surgery. Verywell / Nusha Ashjaee Over time, the condition can worsen. However, anyone can have rectal prolapse regardless of their sex assigned at birth or age. There are three primary types of rectal prolapse where surgery may be considered....

April 18, 2025 · 2 min · 319 words · William Bryant

Understanding Repression in Psychology

This article explains psychological repression and provides examples of repression and the physical and emotional signs and symptoms. It also covers therapeutic methods that may help work through repression to promote healing. Repression is associated with a multitude of experiences, thoughts, or emotions. Fiordaliso / Getty Images Over time, emotional repression can significantly impact your physical health and well-being. Repression minimizes this dissonance by pushing conflicting thoughts and emotions out of awareness....

April 18, 2025 · 2 min · 313 words · Francisco Roberts

Understanding Respiratory Difficulties in Multiple Sclerosis

Breathing Problems That Can Be brought on by MS Respiratory problems can occur in advancedmultiple sclerosis(MS). Symptoms Mild respiratory weakness can manifest with shallow breathing, which can be fast or slow. You may not notice this at first, as you might just consider it the way you normally breathe. Verywell / Cindy Chung Regardless, shallow breathing can make you feel run down. For example, the feeling that you cant get enough air can lead to panic attacks and severe anxiety....

April 18, 2025 · 2 min · 226 words · Kaitlyn Roberson

Understanding Seizures: What They Look Like and How to Respond

Seizures are triggered by a disruption in the normal flow of signals in your brain. When this happens, a wide range of symptoms can appear. These symptoms only appear in very specific categories of seizures. Madrolly / Getty Images It’s also possible to have more than one punch in of seizure at a time. Seizures can take many forms. The chaotic nature of the neurological signals that cause seizures shows itself in symptoms....

April 18, 2025 · 3 min · 461 words · Rachel Keith

Understanding Stage 1 Breast Cancer

Breast cancer, like other cancers, is staged. This is a determination of how much cancer has spread. The stages help guide treatment and prognosis. Illustration by Julie Bang for Verywell Health Stage 1 breast cancer is confined to where abnormal cell division began. It has not spread yet to anywhere else in the breast or body. Therefore, it is further subdivided into Stages 1A and 1B. Get our printable guide for your next healthcare provider’s appointment to help you ask the right questions....

April 18, 2025 · 4 min · 739 words · Tyler Robertson

Understanding Surgical Margins in Breast Cancer

This border is called the surgical margin. A pathologist will then examine this margin to determine if all the cancer cells in that area are gone. The tumor is usually “inked” on the edges. Verywell / Gary Ferster This allows the pathologist to clearly see the end of the tumor. Close marginsfound after a lumpectomy might require another surgical procedure, called a re-excision. Summary Determining surgical margins with breast cancer surgery is very important for the oncologist to know....

April 18, 2025 · 2 min · 238 words · Anthony Cross