Sir my penis is covered by the skin and it's...

Normal penis length:   

          
In adults, normal penis size during erection is between 11 to 18 cm, and during relaxation id between 5-10 cm

Can you increase your penis length?

Till now, there is no approved way to increase penis length either by medications or surgery.

Complications of surgery:

• Infection
• Ejaculation problems
• Erectile dysfunction
• Penis bending

What i advise you?

You have to trust yourself and you do not need any treatment.

Treatment of curved penis:
First of all, it's recommended to undergo a medical examination to be done by a urologist to evaluate your condition and then take the appropriate action accordingly. In some cases the penis curvature may be caused by genetic factors, but the most common cause is Peyronie’s disease, which causes fibrosis in the penis whcish affects the occurrence of erection, and among the treatment methods used in such cases are Verapamil and Interferon to reduce scarring and fibrosis, and in severe and chronic cases, the optimal treatment is surgical intervention .

Diagnosis:
Clinical examination and taking your medical history by the urologist. Some tests can also be done including an ultrasound examination of the penis, in addition to a CBC blood test to rule out the presence of infections.

Causes of curvature in the penis:
There are some reasons that may cause a curvature of the penis, including:

• Familial issue
• Peyronie's disease
• Connective tissue inflammation
• Injury to the penis
• Aging process
• Others

Recommendation:
It's recommended to see the urologist for further assessment and management.