Final answer:
Untreated strep throat can lead to serious complications, such as acute rheumatic fever and acute glomerulonephritis.
Step-by-step explanation:
Yes, untreated strep throat can lead to serious complications. One of the primary reasons strep throat is treated aggressively with antibiotics is to prevent the development of complications.
If Streptococcus pyogenes, the bacteria that causes strep throat, is left untreated, it can lead to two serious sequelae: acute rheumatic fever and acute glomerulonephritis. Acute rheumatic fever can cause inflammation in the heart, joints, skin, and nervous system, while acute glomerulonephritis can lead to kidney damage.