Symptom: Firm and Reduced in Dimension
A sebaceous cyst typically feels firm when touched. Its size can vary, but it is usually small, ranging from approximately one centimeter to five centimeters in diameter. To put it into perspective, this particular skin cyst is approximately the size of a pea. Despite its hardness, the cyst is smooth and commonly exhibits a round shape. If you notice any significant alterations in its shape or rapid growth, it is crucial to seek immediate medical attention.
Symptom: Thick, Yellow Substance
When it comes to epidermoid and pilar cysts, they are primarily composed of keratin. On the other hand, sebaceous cysts are filled with sebum, an oily and waxy substance. This sebum is thick and has a distinctive yellow color. In case the cyst becomes infected, it might emit a specific odor similar to that of foot odor. Furthermore, if the skin cyst or the capsule surrounding it gets infected, the contents of the cyst may deviate from the usual description.