From infections and deformity to tissue death: What medical experts say about the risks of penile enlargement procedures
The desire for a larger penis has pushed some men to undergo surgical procedures, injections and other forms of penile enhancement. However, medical experts warn that some enlargement methods can carry serious health risks, particularly when performed by unqualified practitioners or when unapproved substances are injected into the penis.
Penile augmentation refers to procedures intended to increase penile length, girth or both. These may include surgery, injectable fillers, fat transfer, implants and traction devices.
Although some techniques can produce measurable changes, medical evidence remains limited for many procedures, and complications can occur. A systematic review published in 2026 involving 23 studies and 2,620 patients estimated an overall complication rate of about 14.9 per cent across the procedures studied. The researchers also noted that the evidence varies considerably between techniques.
Here are seven important clinical facts men should know.
- Many men seeking enlargement may already have a normal-sized penis
Medical literature indicates that penile augmentation is controversial partly because many men seeking the procedure have penile dimensions within the normal range.
Experts therefore recommend proper medical assessment before considering enlargement. In some cases, the concern may be related more to body image or perception than to an actual medical abnormality.
- Pills and creams should not be treated as guaranteed solutions
Products marketed online as penis-enlargement pills, creams and herbal remedies often make claims that are not supported by strong clinical evidence.
Men should be particularly cautious about products whose ingredients are unknown or whose manufacturers promise permanent enlargement without medical evidence.
- Surgery can produce complications
Surgical enlargement procedures may involve techniques designed to increase apparent length or girth. However, surgery can result in complications including infection, bleeding, scarring, altered appearance, pain, deformity and the need for additional operations.
A systematic review of penile augmentation surgery stresses the importance of assessing both the potential benefits and complications before treatment.
- Injecting unapproved substances can be extremely dangerous
One of the greatest dangers is the injection of foreign materials such as liquid paraffin, silicone, mineral oils or petroleum-based substances.
These substances can trigger chronic inflammation and foreign-body reactions. Complications may include pain, swelling, lumps, infection, scarring, penile deformity and tissue damage.
A systematic review found that 77.9 per cent of reported patients presented with pain, swelling or penile deformity, while 78.8 per cent required surgical treatment.
- In severe cases, tissue can die
Penile injections can sometimes cause necrosis, meaning tissue death.
In a UK series of 35 men treated for complications following foreign-material injections, three patients developed necrosis requiring urgent surgical removal of dead tissue. Overall, 32 of the 35 patients required surgery.
In the wider systematic review, complications were severe enough in some cases to result in extensive reconstructive surgery; two reported patients underwent penile amputation.
- Complications may appear years after the procedure
A major misconception is that a man is safe once an enlargement procedure has healed.
Medical reports show that complications from foreign-material injections can appear months or even years later. Chronic inflammation can cause hardening of tissue, lumps, deformity, pain and cosmetic dissatisfaction.
In the UK case series, the interval between injection and presentation ranged from one day to 20 years.
- There is no completely risk-free method of permanent enlargement
Some newer techniques, including certain fillers and traction-based approaches, have shown potential benefits, but the evidence is not equally strong for every method.
A major systematic review concluded that the overall quality of evidence for penile enhancement remains limited, making it difficult to establish firm recommendations about the safety and effectiveness of many procedures.
A newer 2026 meta-analysis similarly found substantial differences in complication rates between techniques and noted that comparisons between materials are largely indirect.
The biggest warning: Avoid unqualified injectors
Doctors are particularly concerned about men receiving injections from unqualified practitioners, beauty practitioners or individuals operating outside regulated medical facilities.
The consequences can go far beyond an unsatisfactory cosmetic result. Reported complications include:
- Severe pain and swelling
- Infection and abscess formation
- Scarring and permanent lumps
- Penile deformity
- Skin ulceration
- Tissue necrosis
- Lymphoedema
- Erectile or sexual problems
- Need for reconstructive surgery
- In extreme cases, loss of part or all of the penis
A 2026 medical review also documented complications such as erosion, inflammation, nodules, ulcers, necrosis, gangrene and, in severe reports, death associated with some foreign-body augmentation practices.
What men considering enlargement should do
Before undergoing any penile enlargement procedure, men should consult a qualified urologist or specialist in sexual medicine.
The doctor should assess the actual penile dimensions, the patient’s expectations, general health and the potential benefits and risks of the proposed procedure.
Most importantly, men should never inject the penis themselves or allow unqualified individuals to inject oils, silicone, petroleum jelly, paraffin or other unapproved substances into the penis.
Bottom line
The promise of a larger penis may be attractive, but enlargement procedures are not without risks. While some medically supervised techniques may provide modest improvements, unsafe injections and poorly performed procedures can cause permanent deformity, severe infection, tissue death and the need for major reconstructive surgery.
For men considering enlargement, the safest first step is not an injection or operation—it is a consultation with a qualified urologist.
