Skin under the jaw sagging

Loose skin beneath the jaw may develop as collagen and elastin change with age or sun exposure. Weight change, inherited facial structure, fat beneath the chin and the position of neck muscles can also affect the outline. Skin laxity is different from a sudden lump or swelling, which may need medical assessment.

A clinician examines the jawline at rest and during movement, considers skin thickness and checks whether fullness or muscle activity is contributing. This prevents a tightening treatment being chosen for a problem it cannot address.

Protect the neck and lower face from ultraviolet exposure and keep the skin moisturised. Depending on the findings, a clinician may discuss radiofrequency skin tightening or HIFU skin lifting for selected laxity. A thread lift places temporary support beneath the skin and involves a procedural recovery period.

These approaches differ in depth, sensation, downtime and expected change. Results depend on tissue quality and the amount of laxity. Avoid unregulated threads, home energy devices and treatment over active infection or irritated skin.

Seek medical assessment for sudden one-sided swelling, a firm or growing lump, difficulty swallowing or breathing, unexplained pain, skin ulceration or rapidly changing neck fullness. After a procedure, contact the treating service for spreading redness, fever, severe pain or discharge.

Ask whether lax skin, fat, muscle or structure is the main issue; which approach reaches it; what recovery involves; what happens if the result is uneven; and which warning signs require follow-up.