What causes diarrhea and fever in children?

Written by Yan Xin Liang
Pediatrics
Updated on March 10, 2025
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If a child has diarrhea accompanied by fever, it is generally considered to be infectious diarrhea, which includes both bacterial and viral infections. Common viral gastroenteritis is caused by rotavirus infection. Rotavirus infects the intestines, which can cause fever, vomiting, and diarrhea with frequent stooling, characterized by egg-flower or watery stools, and may also be accompanied by symptoms such as dry mouth and scanty urination. The treatment mainly focuses on fluid replenishment and symptomatic supportive care. There is also bacterial gastroenteritis, such as colitis caused by Escherichia coli infection and bacillary dysentery caused by Shigella infection, which can present with fever, diarrhea, abdominal pain, and bloody stools.

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Written by Yan Xin Liang
Pediatrics
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What medicine should a child take for indigestion and diarrhea?

For childhood indigestion and diarrhea, one can initially use intestinal probiotics to modulate the gut flora, such as Bifidobacterium or Lactobacillus. Additionally, zinc supplementation can be provided to promote the repair of the gastrointestinal mucosa. Another option is to administer Smecta to protect the gastrointestinal mucosa. Digestive medications can also be given, such as Chinese medicinal herbs like hawthorn, Shenqu, and malt to aid digestion. Furthermore, it is important to ensure the diet consists of easily digestible foods.

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Written by Feng Ying Shuai
Traditional Chinese Medicine
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Which area is used for moxibustion to treat diarrhea in children?

For clinical pediatric diarrhea, moxibustion is mainly applied to the abdominal area. Moxa sticks can be used, starting with moxibustion at the Shenque point around the navel for 3 to 5 minutes. Then, moxibustion can be performed at the Tianshu points on both sides of the navel, which are on the abdomen, as well as the Guanyuan point on the lower abdomen and the Zhongwan point on the upper abdomen, achieving the purpose of astringing the intestines to stop diarrhea and relieve pain. In addition to moxibustion on the upper and lower abdomen and center of the navel, moxibustion can also be applied to some distal points on the limbs of children, such as the Zusanli and Shangjuxu points on the lower limbs, which can achieve a very good effect in stopping diarrhea.

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Written by Yan Xin Liang
Pediatrics
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How should pediatric diarrhea be treated?

For childhood diarrhea, initially probiotics can be administered to adjust the intestinal flora, commonly used probiotics include Bifidobacterium or Lactobacillus acidophilus. Next, it's important to protect the gastrointestinal mucosa, for which oral smectite powder can be given. Additionally, diarrhea can easily damage the gastrointestinal mucosa, so it's appropriate to supplement with zinc or folic acid to promote the repair of the gastrointestinal mucosa. It is also important to ensure fluid replenishment to maintain hydroelectrolytic balance, commonly using oral rehydration salts which can replenish both fluids and electrolytes. Attention should also be paid to the child’s mental response and urinary output.

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Written by Yao Li Qin
Pediatrics
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Can children with diarrhea drink milk?

When a child experiences diarrhea, it indicates an increase in the frequency of bowel movements and a change in the nature of the stools. The first principle of treating diarrhea is to continue feeding the child, so it is acceptable for children who drink cow's milk to continue doing so. However, if the diarrhea persists for a long time and the child develops lactose intolerance, it may be considered to switch to a diarrhea-specific formula, which is lactose-free, as this will be more beneficial for the child's recovery from diarrhea. Normally, it is possible to continue giving cow's milk, as the feeding must continue to ensure the child's adequate nutritional needs. Otherwise, fasting the child and providing nothing to eat, coupled with diarrhea, can quickly lead to dehydration, acidosis, and electrolyte imbalances.

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Written by Quan Xiang Mei
Pediatrics
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How many days will it take for a child's diarrhea to get better?

The duration of diarrhea depends on the child's condition, whether it is physiological or pathological diarrhea. For physiological diarrhea in children, which is mostly due to dietary reasons, adjusting the structure of the diet can usually bring improvement. However, physiological diarrhea is not easy to resolve and can sometimes persist for months. If it is pathological diarrhea, it is necessary to identify whether it is caused by bacteria, viruses, or other specific diseases. In such cases, the first step is to perform a stool test on the infant. This involves collecting the child's stool in a clean container and bringing it to the hospital for examination within an hour to determine the cause, which will then guide further targeted medication adjustments. The duration of the illness will depend on the type of pathogen infecting the child.