Balanitis is inflammation of the head of the penis (the glans). The foreskin (the loose flap of skin covering the head of the penis) is often affected too.
This common condition can occur at any age, but happens a little more often in men who have not been circumcised.
Balanitis is not normally serious and can usually be prevented with good hygiene.
For full details of Balanitis click here to be taken to the NHS Choices website. If you are worried you may be at risk of having an STI or have any symptoms (as mentioned on the NHS Choices link to Chlamydia), you should visit your local sexual health or GUM clinic to have them checked out.
(Link checked as correct on 22/04/2013 by SH next update due 22/10/2013)