What does subcutis mean?
The subcutis is the layer of tissue directly beneath the skin. It consists mainly of connective tissue and commonly includes a varying quantity of fat, giving the body some of its underlying cushioning and insulation. The subcutis lies between the dermis above and structures such as fascia and muscle below. In medicine, it is especially relevant to injections, liposuction, wound care, and the movement and appearance of the skin. A medication deposited in this layer may be described as being administered subcutaneously, meaning beneath the skin. Although “subcutaneous tissue” is more familiar in everyday usage, “subcutis” is the more precise anatomical term for the tissue layer itself. It should not be confused with the dermis, which is the skin’s principal outer layer and lies above it.
nounThe layer of tissue immediately beneath the skin, comprising connective tissue and often containing a variable amount of fat. It lies between the dermis and the underlying fascia or muscle.
- The anatomical layer of connective tissue and fat lying immediately beneath the skin.
"The injection was placed in the subcutis, just beneath the skin."
"Fat is distributed unevenly through the subcutis of the abdomen."
"A clinician inserted the needle into the subcutis rather than into the muscle."
Rare; “subcutis” is commonly used as a singular or mass noun.
"The surgeon noted extensive fluid accumulation in the subcutises."
The subcutis is the body's hidden padding layer: it sits beneath the skin and helps cushion, insulate, and connect the skin to deeper tissues.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does subcutis come from?
The word comes from Latin subcutis, literally “under the skin,” formed from the prefix sub- meaning “under” and cutis meaning “skin.” English anatomical usage adopted this Latin term, which also underlies related words such as cutaneous, subcutaneous, and mucocutaneous.
How subcutis is actually used
This is a formal anatomical term used chiefly in medicine, dermatology, surgery, and anatomy. In general descriptions of the body, “subcutaneous tissue” is often more natural.