Fat Transfer: How Much Fat Actually Survives?

Fat transfer uses your own fat, collected by liposuction, processed and injected into the breasts. A common question is how much of that fat remains.

Not all of it survives

Transferred fat needs a blood supply to survive. Some fat cells establish one; others do not and are absorbed by the body. Published studies report a wide range of retention, and individual results are unpredictable. Be wary of any provider promising a fixed percentage.

What may influence survival

• The technique used to harvest, process and inject fat
• The volume injected, since too much at once can reduce survival
• Your tissue and skin elasticity
• Smoking, which affects blood supply
• Weight change after surgery
• Whether a bra or external expansion device is used before surgery, which some surgeons use

Realistic volume

Fat transfer typically offers a modest, natural-feeling increase rather than a dramatic one. Some people need more than one session to reach their goal.

Possible complications

These include uneven results, fat necrosis (areas of hardened fat), oil cysts and calcifications that can show up on breast imaging, infection and the usual risks of liposuction. Tell any imaging team you have had fat transfer.

Who may not be suitable

People with little donor fat, or who want a large increase in size, may find it does not meet their goals. Your surgeon should explain this honestly.

Questions to ask

• How much do you expect to survive in someone like me?
• How many sessions might I need?
• How do you handle lumps or calcifications?
• Do you have results from patients with a similar body type?