Complications of malaria can arise rapidly, particularly with Plasmodium falciparum, the most dangerous of the malaria parasites.
These problems start when the infection isn’t found or treated quickly. They also happen more often if a person’s immune system is already weak. In serious cases, these problems can lead to long-term harm or even death. Knowing what can happen when malaria becomes severe helps with quick action and better care.
In this part, we look at the major complications of malaria. These include brain damage, low blood levels, breathing trouble, kidney damage, and other serious health risks. We’ll also explain how these issues affect different age groups and places. Finally, we’ll cover ways to help stop them from happening.
1. Cerebral Malaria
This is one of the worst Complications of Malaria. It happens when infected red blood cells block tiny blood vessels in the brain. It mostly comes from P. falciparum and can get worse very fast if not treated.
Common symptoms are:
- Seizures
- Confusion or strange behaviour
- Coma
- Changes in how someone acts
Without fast treatment, this can kill someone in just a few hours. Survivors may have lasting brain problems. These include trouble thinking, speech issues, or even epilepsy. Quick treatment with strong medicine through the vein and close medical care are needed to save lives.
2. Severe Anaemia
Severe anaemia is a common problem, especially in children and pregnant women. Malaria attacks red blood cells. It destroys them and also stops the body from making new ones.
Look out for signs like:
- Feeling very tired
- Pale skin
- Trouble breathing
- Fast heartbeat
- Heart problems if it gets really bad
Some people may need a blood transfusion. In areas where malaria happens often, kids can get long-term anaemia. This can slow down their growth and learning.
3. Acute Respiratory Distress Syndrome (ARDS)
ARDS is a dangerous lung problem linked to malaria. It causes fluid to fill the lungs, which stops oxygen from reaching the blood.
Key signs include:
- Trouble breathing
- Fast breathing
- Very low oxygen levels
Even though ARDS is rare, it can come on suddenly. Some patients need a breathing machine and strong medical help. It can even happen after the malaria gets better, so doctors must watch patients closely.
Serious Organ Damage from Malaria
4. Kidney Failure (Acute Renal Failure)
Malaria can harm the kidneys. This happens when a person becomes too dry (dehydrated), red blood cells break down, and blood flow drops. These problems can affect both children and adults.
Watch for:
- Peeing less than usual
- Swelling in the body
- High levels of waste in the blood
- Problems with salt balance in the body
If doctors don’t treat this quickly, it can cause deadly issues like too much fluid, salt build-up, or heart failure. Some people may need dialysis.
5. Hypoglycaemia
This is another serious but often missed issue. It means low blood sugar. It mostly affects kids and pregnant women. The malaria parasite, poor eating, or the medicine quinine can cause it.
Symptoms include:
- Sweating
- Shaking
- Confusion
- Fainting
- Seizures
Doctors need to check sugar levels often during treatment. If sugar drops too low, patients need fast care with sugar given through a vein.
6. Liver Dysfunction and Jaundice
The liver often suffers during a malaria infection, especially with P. falciparum. This can lead to jaundice, which makes the skin and eyes turn yellow. It happens when red blood cells break down and the liver gets swollen.
Common signs are:
- High levels of bile (bilirubin)
- Bigger liver
- Poor liver test results
Mild jaundice often gets better on its own. But if liver failure or other serious liver problems happen, the outcome can be much worse.
Other Life-Threatening Complications of Malaria
7. Metabolic Acidosis
This happens when the body makes too much acid or can’t remove enough of it. It’s common in kids with bad malaria. This condition can lead to very poor results.
Symptoms include:
- Deep, heavy breathing
- Sleepiness or passing out
- Stomach pain
- Fast move into shock
Treating the root cause fast is key. This often means giving malaria medicine right away and adding fluids to support the body.
8. Splenic Rupture
Though it doesn’t happen often, the spleen — an organ that helps fight infection — can tear during malaria. This is a true emergency and can be deadly.
Symptoms are:
- Sudden stomach pain (upper left side)
- Bleeding inside the body
- Very low blood pressure
- Signs of shock
If this happens, doctors may need to remove the spleen and give emergency care.
9. Pregnancy-related Complications
Pregnant women face more Complications of Malaria. The illness can cause miscarriage, early birth, stillbirth, and babies born too small. This happens when infected cells block the placenta and lower oxygen and food to the baby.
Other risks include:
- Low red blood cells in the mother
- Higher chances of severe malaria
- Heavy bleeding after birth
To stay safe, pregnant women in malaria areas should use treated bed nets and take preventive medicine.
10. Recrudescence and Relapse
Even when treated, malaria can come back.
- Recrudescence means the malaria wasn’t fully gone and starts to grow again.
- Relapse is more common with P. vivax and P. ovale, where hidden liver parasites become active weeks or months later.
Doctors must follow up with proper medicine, like primaquine or tafenoquine, to stop this from happening again.
11. Death
Without fast treatment, malaria can quickly shut down many organs and lead to death. Children under five, pregnant women, people with weak immune systems, and travellers without past exposure face the most risk.
Quick testing and fast treatment save lives. In 2022, the World Health Organization said malaria killed more than 600,000 people. Most were young children in sub-Saharan Africa.
Final Thoughts on Complications of Malaria
Complications of Malaria are many and can be deadly. They affect the brain, blood, lungs, liver, kidneys, and more. But many of these problems can be avoided. Quick treatment, regular checks during recovery, and strong steps to stop malaria in the first place all make a big difference.
Using bed nets, medicine for travellers, and public health tools in communities helps prevent malaria. More awareness, better access to care, and stronger health systems are key to cutting down Complications of Malaria around the world.
