Double chin aesthetics is actually a broad concept and includes many components. To understand this, it is necessary to first define the jowl area. The jowl area (known in medicine as the submental area) refers to the upper region of the lower neck of the chin. There may be different situations that disturb the patient in this area. These:

Excess fat in the jowl area,
Loosening of the muscles that support the chin area by wrapping it like a hammock,
Sagging due to loss of skin elasticity,
Enlargement of the salivary glands under the jaw,
Appearance disorders due to developmental problems of the jaw bone
Correcting the conditions mentioned above provides a delayed appearance and reveals the jaw line.