Typhoid Symptoms

Quick Glance: Common Typhoid Symptoms

The most common typhoid symptoms include:

• Persistent fever that gradually increases over several days

• Headache

• Tiredness, weakness or a general feeling of being unwell

• Stomach pain or abdominal discomfort

• Loss of appetite

• Nausea or vomiting

• Constipation or diarrhoea

• Dry cough or a faint rash with rose-coloured spots in some cases

Symptoms of Typhoid That Should Not Be Ignored

Some typhoid symptoms may indicate that the infection is becoming more severe and require timely medical evaluation. The table below explains the warning symptoms of typhoid and what they may suggest:

Typhoid complications are more likely when the infection is not diagnosed or managed appropriately. Severe cases may involve problems such as intestinal bleeding, intestinal perforation, sepsis or changes in mental awareness.

Why Do Typhoid Symptoms Occur?

Typhoid symptoms occur when Salmonella Typhi enters the body, usually through contaminated food or water, and causes an infection in the digestive system. After entering the intestine, the bacteria can pass through the intestinal lining and spread through the bloodstream. This activates the body’s immune response, which leads to many of the symptoms associated with typhoid fever.

Fever is one of the most common typhoid symptoms because the immune system releases inflammatory substances while fighting the infection. These changes affect the body’s temperature regulation, causing a fever that may start gradually and become higher over time.

The infection can also affect the digestive system, causing stomach pain, nausea, constipation or diarrhoea. Inflammation in the intestine may disturb normal bowel function, which is why some people experience changes in their bowel habits during typhoid.

Fatigue and weakness occur because the body uses more energy while responding to infection. Fever, reduced food intake, nausea and dehydration can further contribute to tiredness and a general feeling of illness.

Some people with typhoid may develop a faint, pink-coloured rash known as rose spots. These spots usually appear on the trunk and may disappear within a few days. However, this symptom does not occur in everyone with typhoid.

Symptoms of Typhoid That Require Immediate Medical Attention

Seek immediate medical attention if a person with suspected or confirmed typhoid develops:

• Severe abdominal pain or a swollen abdomen

• Blood in stool

• Persistent vomiting with difficulty keeping fluids down

• Severe dehydration or very little urine output

• Confusion, reduced alertness or unusual sleepiness

• Fainting or loss of consciousness

• Difficulty breathing

• Extreme weakness or signs of shock

• Rapid worsening of symptoms after several days of fever

These symptoms may occur when typhoid affects other parts of the body or leads to complications such as intestinal bleeding, intestinal perforation, peritonitis, sepsis or neurological problems.

Symptoms of Typhoid Based on Type

Typhoid fever and paratyphoid fever are closely related infections caused by different types of Salmonella bacteria. The table below explains the common symptoms associated with each type of typhoid:

Typhoid fever and paratyphoid fever can have similar symptoms, so laboratory testing may be needed to confirm the exact cause of illness.

Symptoms of Typhoid in Children

Children with typhoid may experience symptoms similar to adults, but some signs may appear differently depending on their age. Younger children may become dehydrated more quickly, especially if they have vomiting or diarrhoea.

Common typhoid symptoms in children may include:

• Persistent fever

• Weakness and tiredness

• Reduced appetite

• Stomach pain

• Nausea or vomiting

• Diarrhoea or constipation

• Irritability or unusual sleepiness

Children with prolonged fever, reduced fluid intake or signs of dehydration should be evaluated by a healthcare professional.

Can You Have Typhoid Without Symptoms?

Most people with active typhoid fever develop noticeable symptoms, especially persistent fever and weakness. However, some people who recover from typhoid may continue carrying Salmonella Typhi in their bodies without experiencing symptoms. Such people are known as chronic carriers.

Chronic carriers may continue to release bacteria in their stool and can potentially spread the infection to others. Chronic carriage is different from having a completely symptom-free active typhoid infection.

A person who has had typhoid in the past and continues to experience concerns related to infection transmission may need medical follow-up.

When Can Typhoid Symptoms Become Life-Threatening?

Untreated or severe typhoid can sometimes lead to serious complications. The table below explains conditions that may become life-threatening and their possible effects:

These complications are more likely in severe or untreated cases of typhoid and require urgent medical care.

How are Typhoid Symptoms Diagnosed?

Typhoid symptoms alone cannot confirm the infection, as several other illnesses can cause prolonged fever, weakness and stomach-related symptoms. Doctors usually consider symptoms, exposure history and laboratory tests to confirm typhoid.

The table below explains the common diagnostic tests used when typhoid is suspected:

Blood culture is generally preferred for confirming acute typhoid, although no single test detects every case.