How To Gastro - Medical Lectures Made Easy

03/09/2026

You’re eating normally.
You haven’t suddenly started exercising more.
Yet somehow… the weight keeps coming off.

At first, you might think: “Great!”

But what if sudden, unexplained weight loss isn’t always good news?

Sometimes, losing weight without trying can be one of the earliest clues that something is happening beneath the surface.

⚠️ How much weight loss is too much?
⚠️ When should you actually be worried?
⚠️ And what could your body be warning you about?

In this video we cover 10 hidden causes of sudden, unexplained weight loss...

🎥 Watch before you dismiss it as “just losing a few kilos.”

WATCH THE VIDEO HERE → https://www.youtube.com/watch?v=mmM_lTB9xAA

Your weight can change. But unexplained weight loss deserves an explanation.

Are you shedding pounds without even trying? Rapid weight loss migh...

03/09/2026

🌸 SEPTEMBER IS PCOS AWARENESS MONTH 🌸

Could you have PCOS without even realising it?

Polycystic O***y Syndrome can present in many different ways, and the symptoms can sometimes be mistaken for “normal” hormonal changes.

Are you experiencing irregular periods, unexplained weight changes, or fertility struggles? These could be hidden signs of PCOS...

🎥 Want to learn more? Watch my full lecture:
https://youtu.be/3z4kxK9djes

***ySyndrome

02/09/2026

IT’S MEDICAL QUIZ WEDNESDAY! 🧠🩺

TODAY’S QUESTION:

Which liver enzyme is classically associated with chronic alcohol consumption? 🍷

A. ALT
B. GGT
C. ALP

Do you know the answer?
Drop your answer in the comments before checking the reveal!

01/09/2026

Ever wondered what an esophageal stricture looks like on a barium swallow? 🩻

An esophageal stricture is an abnormal narrowing of the esophageal lumen that can obstruct the normal passage of food and cause dysphagia (a difficulty in swallowing).

On barium swallow we look for:
Localised narrowing of the esophageal lumen
Possible proximal dilatation
Delayed passage of contrast beyond the stricture

Watch the lecture video here:
https://youtu.be/LLW3OQZvBhI?si=y6_8s8mF2BO7djkb

31/08/2026

Think you may have been exposed to HIV? Timing matters when you test.

The window period is the time between HIV infection and when a particular test can reliably detect it. A test taken too early can be negative even if someone has HIV.

⏱️ Different tests have different window periods:
🔬 NAT (HIV RNA): approximately 10–33 days
🩸 Laboratory 4th-generation Ag/Ab test: approximately 18–45 days
💉 Rapid finger-prick Ag/Ab test: approximately 18–90 days
🧪 Antibody-only tests: approximately 23–90 days

Watch the full lecture here to learn more about your options: https://youtu.be/suDZiVJ8_rA

The key message: A negative result shortly after exposure may not be conclusive because you may still be within the window period.

If you’ve had a recent potential exposure, speak to a healthcare professional about which test to use and when to repeat it.

And remember: PEP must be started within 72 hours of a potential exposure—the sooner, the better.

30/08/2026

An acute HIV infection can sometimes look just like a flu or viral illness — which means the early symptoms can easily be overlooked.

Here are 6 common early symptoms to know about:
Fever
Swollen lymph nodes
Sore throat
Skin rash
Muscle & joint aches
Fatigue

But here’s the important part: symptoms alone cannot diagnose HIV. If there has been a possible exposure, appropriate HIV testing is essential.

🎥 Watch the full medical lecture here:
https://youtu.be/suDZiVJ8_rA?si=jQlfNIUmFNKEiQYw

29/08/2026

🪱 COULD A PARASITE BE HIDING IN YOUR LIVER?

Your liver can be affected by parasites in ways you might never expect - and some infections can remain unnoticed for a long time.

So what parasites can affect the liver?
How do they get there?
What symptoms should you look out for?
And how are these infections diagnosed?

🎥 Is a Parasite Hiding in Your Liver? What You Need to Know

Fasciolosis is a parasitic infection caused by Fasciola hepatica, a...

27/08/2026

ONE EPISODE OF FORCEFUL VOMITING… AND YOU COULD START BLEEDING INTERNALLY.

Sounds dramatic? It’s a real medical condition called Mallory-Weiss Syndrome.

A sudden tear in the lining of the esophagus can lead to vomiting blood and significant upper GI bleeding — and knowing the difference between this and a full-thickness oesophageal rupture could be lifesaving.

In this lecture, we unpack:
🤮 Why forceful vomiting can cause bleeding
🤮 Exactly where the tear occurs
🤮 Common causes and symptoms
🤮 Mallory-Weiss vs Boerhaave Syndrome
🤮 How it is diagnosed and treated

🎥 Watch now: https://youtu.be/md5ixGYN2x8

Mallory-Weiss Syndrome: Why Forceful Vomiting Can Be DangerousCan...

26/08/2026

MEDICAL QUIZ WEDNESDAY 🧠

Tuberculosis is commonly associated with the lungs — but did you know that TB can also affect other parts of the body?

Which site is most commonly affected by extrapulmonary TB?
A. Liver
B. Brain and Spine
C. Lymph nodes

Drop your answer in the comments before checking the answer! 👇

Follow How To Gastro – Medical Lectures Made Easy for more medical quizzes, clinical pearls and easy-to-understand medical education.

25/08/2026

Can you spot the abnormality on this barium swallow? 👀

Oesophageal varices are enlarged, dilated veins within the oesophageal wall. They most commonly develop in people with advanced liver disease and portal hypertension.

On a barium swallow, oesophageal varices can appear as multiple serpiginous filling defects along the oesophageal wall, producing a characteristic worm-like appearance.

🎥 Want to learn more about how a barium swallow works and what abnormalities it can reveal?

▶️ Watch the full video here: https://youtu.be/LLW3OQZvBhI?si=6_Ep_u2jrMaz9gF7