Fever in children is a common concern. The most frequent causes include viral infections like the common cold, influenza, and roseola. Bacterial infections such as streptococcal pharyngitis (strep throat) and urinary tract infections can also cause fever. Teething may cause a slight increase in temperature but not usually a high fever.
Diarrhea is often a result of gastroenteritis, which can be caused by a variety of viruses, bacteria, and parasites. Common viral causes include rotavirus and norovirus. Bacterial causes include Campylobacter, Salmonella, and E. coli. Food allergies and intolerances, such as lactose intolerance, can also cause diarrhea.
Rashes in children can be caused by a wide range of factors including viral infections like chickenpox, measles, and hand, foot, and mouth disease. Bacterial infections such as impetigo and fungal infections like ringworm are also common causes. Allergic reactions to foods, medications, or environmental factors can also lead to rashes, as can conditions like eczema.
Headaches in children can be caused by a variety of factors. Tension headaches and migraines are common. Other causes include viral infections, sinusitis, and ear infections. In rare cases, headaches can be a symptom of more serious conditions like meningitis or a brain tumor.
