What is the Difference Between Cyst and Boil?

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The main difference between a cyst and a boil is that a boil is a bacterial or fungal infection, while a cyst is a noninfectious, slow-growing, and usually painless sac under the skin filled with fluid or semisolid material. Here are some key differences between cysts and boils:

  • Causes: Boils result from a bacterial or fungal infection, typically caused by staph bacteria or certain fungi. Cysts, on the other hand, are not generally caused by infections.
  • Symptoms: Boils are usually painful, red, and swollen, filled with pus. Cysts are usually painless.
  • Contagion: Boils can spread bacteria or fungi on contact, while cysts are not contagious.
  • Appearance: Boils are typically larger than cysts and appear red and swollen. Cysts are smooth and not red.
  • Treatment: Doctors can treat cysts with minor surgery, while boils can usually be treated at home.

It is essential to consult a medical professional if you are unsure whether you have a cyst or a boil, as the treatment and monitoring may differ significantly.

Comparative Table: Cyst vs Boil

Here is a table summarizing the differences between cysts and boils:

Feature Cysts Boils
Definition A cyst is a smooth, round, closed sac under your skin filled with fluid or semisolid material. A boil, also known as a furuncle, is a painful skin bump filled with pus, typically caused by staph bacteria or fungal infection.
Growth Cysts are slow-growing. Boils grow rapidly and are usually painful.
Pain Cysts are usually painless unless they grow large. Boils are generally painful.
Appearance Cysts are smooth and not red. Boils are red, swollen, and contain yellow pus.
Causes Cysts are not the result of a bacterial or fungal infection. Boils result from a bacterial or fungal infection.
Risk Factors Not contagious. Can spread bacteria or fungi on contact.
Treatment Doctors can treat cysts with minor surgery. People can usually treat boils at home, but if the infection persists, a doctor's help is needed.