Arm Lift or Brachioplasty.

Loose upper arm skin is usually related to weight loss. If you were overweight, or spent many years in the sun, you may have developed saggy skin or heavy upper arms. To compensate the increased volume of the upper arms, your skin stretched. After weight loss, the skin often fails to tighten up, and so it sags. About the only way to improve this problem is through an arm lift called a brachioplasty.

Scars and Incisions in the arm lift are the drawback
Scars are the greatest drawback of this operation. They will extend from your armpit to the elbow, along the inside of the arm. This operation exchanges one cosmetic problem (lose or saggy skin) for another (scars). In general, those with very lose saggy skin are most likely to find this exchange worthwhile. Those with a small amount of lose ness will probably not want to make the trade.

Anesthesia: General or sedation.
Location of operation: Office or hospital.
Length of surgery: 1-2 hours
Length of stay: Outpatient (home same day).
Discomfort: Mild to moderate. Anticipate 2-5 days of prescription pain medication.
Swelling: Improves over 14 days.
Bruising: Is rare
Bandages: Will be removed in 1-7 days.
Stitches: Will be absorbable.
Back to work: 3-7 days.
Exercise: May be resumed in 2 weeks.
Final result: Will be seen after the scars have matured, which will be about six months