Underneath the temples is the temporalis muscle. Some people have a very well-developed temporalis muscle with thicker muscles, so it appears that the temples on both sides are slightly bulging symmetrically, which is normal. Sometimes there are folliculitis or sebaceous cysts in the temple area, which can also appear as a local bulge, and then there may be localized redness and tenderness in the temples. Sometimes acupuncture in the temple area, after the needles are removed, will appear bulging, this is the acupuncture puncture may tie to the superficial temporal veins, causing a small amount of blood leakage, resulting in local edema caused.