Recent Blog Articles
When the doctor becomes the patient: A transformative experience
5 skills teens need in life — and how to encourage them
Stretching studios: Do you need what they offer?
Why are women more likely to develop Alzheimer’s disease?
Seeing red? 4 steps to try before responding
Tics and TikTok: Can social media trigger illness?
Pandemic challenges may affect babies — possibly in long-lasting ways
4 immune-boosting strategies that count right now
If you have knee pain, telehealth may help
How to address opposition in young children
Phimosis and Paraphimosis
What Is It?
In an uncircumcised male, the head of the penis is covered by a sheath of skin known as the foreskin. Phimosis is a condition in which the foreskin is tightly stretched around the head of the penis and cannot be pulled back freely. Phimosis can occur naturally. For example, in boys younger than age 4, it is normally hard to pull back the foreskin. However, in older boys and men, phimosis often is triggered by an infection under the foreskin (balanitis) or by other medical conditions such as diabetes.
Paraphimosis occurs when a tight foreskin is pulled back behind the head of the penis and then becomes stuck. It cannot be placed forward again to its usual position covering the tip of the penis. This can cause swelling, pain, and loss of blood flow to the tip of the penis. If the foreskin cannot be pushed back into its natural position, serious harm can occur.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.Sign Me Up
Already a member? Login ».
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
Free Healthbeat Signup
Get the latest in health news delivered to your inbox!