Strep Throat

Strep throat is a bacterial infection of the throat and tonsils caused by Group A Streptococcus. It commonly affects children and teenagers but can occur at any age. Strep throat often develops suddenly and can cause significant throat pain, making swallowing uncomfortable and affecting daily activities.

Common symptoms include a severe sore throat, pain when swallowing, red and swollen tonsils, white patches or streaks of pus, fever, swollen lymph nodes in the neck, and headache. Some people may also experience nausea, vomiting, or stomach pain, particularly children. Unlike viral sore throats, strep throat typically does not cause coughing or a runny nose.

Diagnosis usually involves a rapid strep test or throat culture. Treatment requires antibiotics to reduce symptoms, prevent complications, and limit the spread of infection. This section explores the causes and symptoms of strep throat, treatment options, recovery expectations, and warning signs — such as difficulty breathing or persistent fever — that require prompt medical attention.