Can a sinus infection cause abscess?

A sinus infection, also known as sinusitis, can potentially lead to an abscess formation in certain cases. An abscess is a localized collection of pus that forms due to bacterial infection. While sinusitis typically causes inflammation and congestion in the sinus cavities, it can sometimes progress to more severe complications.

When a sinus infection becomes severe, the infection may spread to the nearby bones and tissues surrounding the sinuses. The infection can cause the buildup of bacteria and pus, eventually leading to the formation of an abscess. This type of abscess is known as a "subperiosteal abscess" and it occurs between the bone and the periosteum, which is the protective membrane that covers the bone.

Subperiosteal abscesses caused by sinus infections are relatively rare, but they can be serious and require prompt medical attention. Symptoms of a subperiosteal abscess may include severe pain and swelling in the affected area, fever, chills, and headaches. Treatment typically involves antibiotics to clear the infection and surgical drainage of the abscess to remove the pus and relieve pressure.

Therefore, while a sinus infection doesn't always lead to an abscess, it's important to monitor the symptoms and seek medical evaluation if the infection persists or worsens to reduce the risk of developing complications such as an abscess.