What Is the Difference Between Endometriosis and Adenomyosis?

What Is Adenomyosis?

Adenomyosis is a gynaecological condition in which the tissue that typically lines the uterus, known as the endometrium, begins to grow into the muscular wall of the uterus. The endometrium is a type of glandular tissue that helps the womb prepare for pregnancy by thickening. This tissue invades the myometrium in adenomyosis.

This causes the uterus to thicken and enlarge. Sometimes, growth can cause the uterus to expand to double or even triple its usual size. When a woman develops adenomyosis, she experiences heavy menstrual bleeding, which may last longer than usual. Clotting and intense abdominal or pelvic pain are also symptoms of adenomyosis.

What Is Endometriosis?

Unlike adenomyosis, in which the tissue infiltrates the myometrium, in cases of endometriosis, the tissue, similar to that of the inner lining of the uterus, begins to grow outside the organ. This could affect the ovaries, fallopian tubes, and even the tissue that lines the pelvis. In rare cases, the tissue growth could move past the pelvic region as well.

Normally, the endometriosis tissue responds to hormonal cycles and bleeds internally, leading to inflammation. However, when the tissue develops in areas where it should not, it does not leave the body. Instead, it can cause complications like endometriomas.

Oftentimes, the tissue nearby can be irritated to the point of forming scar tissue. Adhesions, which are bands of fibrous tissue, can also form, causing the pelvic tissues and organs to stick together. Apart from painful menstruation, endometriosis can also cause complications like infertility and ovarian cancer. It may also cause a rare type of cancer known as endometriosis-associated adenocarcinoma.

Adenomyosis vs Endometriosis: Key Differences

While adenomyosis and endometriosis can be confused with each other, their main difference is where the tissue grows. Some key differences between the two gynaecological conditions are:

Common Symptoms of Adenomyosis and Endometriosis

Despite being different conditions, adenomyosis and endometriosis often produce similar symptoms, which is one of the biggest reasons why someone would confuse one for the other, making it difficult to diagnose them

Women experiencing either of the conditions could notice the following symptoms:

• Painful cramps or periods.
• Pain during sex.
• Pelvic pain.
• Excessive or heavy bleeding while on your period.
• Infertility
• Enlargement of the uterus.
• Unexplained nausea or bloating.
• Painful bowel movements.

If the symptoms worsen over time, persist for a long time, or affect your daily activities, make sure to seek medical assistance immediately, as it could help prevent severe complications in the future.

What are the Causes of Adenomyosis?

There are no known causes of adenomyosis, but a woman may develop the gynaecological condition for a variety of different reasons, including but not limited to:

• Endometrial cells growing into the muscle wall of the uterus through cuts from a previous uterine surgery.
• Endometrial tissue getting deposited into the uterus at the time of fetal development.
• Inflammation of the uterus lining.
• Presence of bone marrow stem cells in the uterine muscle that end up acting like endometrial cells.
• Retrograde menstruation, which happens when blood flows from the uterus to the fallopian tubes or pelvic cavity during a period instead of exiting the body.
• Hormones and/or genetics.

Causes of Endometriosis Explored

Just like in adenomyosis, an exact cause for endometriosis is not known either. That being said, there are some theories about what could contribute towards the condition. These include:

• Issues with the immune system: Due to a fault in the woman’s immune system, the body could fail to recognise the endometriosis tissue, and as a result, it may not destroy it. 
• Previous surgeries: In women who have gone through surgeries before, such as a C-section, the endometrial cells could attach themselves to the scar tissue formed from the surgical cuts.
• Retrograde menstruation: Another common cause of adenomyosis and endometriosis. When the blood containing endometrial cells flows back into the pelvic cavity or the fallopian tubes, the cells could stick to the pelvic walls and other organs, causing them to grow and thicken. 
• Peritoneal cells: Peritoneal cells line the inner side of the abdomen, and in some cases, they could transform to act like those present on the inside of the uterus.
• Embryonic cells: Oestrogen and other hormones could transform embryonic cells and have them mimic endometrial cells during puberty.

When Should You See a Doctor?

There is a good chance that symptoms may go overlooked when a person is struggling with adenomyosis or endometriosis. How can one know when to reach out to a medical professional?

Seek medical advice if you experience:

• Menstrual pain that disrupts daily activities: While pain is common during menstruation, it may be much more severe in the case of either adenomyosis or endometriosis.
• Heavy bleeding: If you notice that your flow is heavier and longer than usual, it could point to an underlying condition, in which case you should visit a doctor. 
• Painful intercourse: Nerve hypersensitivity, inflammation, or structural changes could cause pain during sex.
• Infertility: If you and your partner have been trying to conceive for a long time to no avail, you should seek medical assistance. 

How are the Conditions Diagnosed?

A physical examination is one of the effective ways of finding out if you are struggling with either endometriosis or adenomyosis. Some tests in the examination include:

• Pelvic exam: Using gloved fingers, a doctor would feel your pelvis for changes that may hint toward either of the conditions. Some changes they usually look for include cysts, painful spots, irregular growths, scars, and so on.
• Ultrasound: By using a transvaginal ultrasound, medical professionals obtain images of your reproductive organs, which may or may not show the thickening of the uterus wall. A transducer may also be used for ultrasound.
• Laparoscopy: The minimally invasive surgery is used to check the abdomen for growths like the endometriosis tissue. A small cut is made near the navel through which a thin instrument called the laparoscope is inserted into the body.
• Imaging: Tests like magnetic resonance imaging (MRI) use a magnetic field and radio waves to develop high-quality images of the organs and tissues.

What Are the Available Treatment Options for Adenomyosis and Endometriosis?

After the diagnosis, your doctor will decide on a treatment plan that best fits your needs. Depending on whether you have adenomyosis or endometriosis, the treatment will vary. In some cases, even minimally invasive surgery might not be required. 

Treatment plans for Adenomyosis include:

• Pain medications: To relieve excessive pain, doctors may prescribe medications such as ibuprofen.
• Hormones: Birth control pills or hormonal intrauterine devices can help with menstruation and heavy bleeding. On the other hand, some non-hormonal medications can also relieve the patient of excessive bleeding.
• Adenomyomectomy: Through this surgery, doctors directly remove adenomyosis from the uterine muscle.
• Uterine artery embolisation (UAE): This is a minimally invasive procedure that shrinks the adenomyosis by cutting off the blood supply.
• Hysterectomy: As a last resort, especially in women who are done having children or do not want to have them, their uterus is surgically removed from their bodies. 
• Changes in diet: While diet alone cannot cure adenomyosis, you can make smarter choices by including fibre and healthy fats in your everyday diet.

Similarly, Endometriosis Can Be Managed By:

• Medications: Non-steroidal anti-inflammatory drugs like ibuprofen help ease menstrual cramps in women struggling with endometriosis. While it won’t entirely get rid of the condition, it will provide much-needed relief.
• Hormone therapy: As seen in adenomyosis, certain hormone medications can help decrease the pain caused by endometriosis. By using lab-made hormone versions, the growth of endometriosis tissue may slow, and new tissue may be prevented from forming.
• Surgery: Some surgeries aim to remove endometriosis tissue from the body while keeping the uterus and ovaries intact. 
• Hysterectomy: As the very last option, the woman has the option of having the uterus surgically removed as a way of dealing with endometriosis.
• Fertility treatments: If the woman desires a child, there are fertility treatments that could be recommended for her. They could be in the form of drugs that enhance ovarian function to produce more eggs, or in vitro fertilisation.

Before making any decision regarding the treatment plan, ensure that you find a doctor you are comfortable with; remember, it is always good to have a second opinion when it comes to your body

Conclusion

Adenomyosis and endometriosis may sound similar at first, but they are completely different conditions that affect a large group of women. In adenomyosis, the endometrial tissue develops within the uterine muscle, while in endometriosis, the same tissue tends to spread beyond the uterus, affecting organs such as the ovaries, fallopian tubes, and the pelvic region.

Furthermore, adenomyosis and endometriosis share similarities in causes and symptoms, thus making the diagnosis more difficult than usual. Painful periods, heavy bleeding, fertility challenges, and pain in the pelvic area are some red flags you should be on the lookout for.

Lastly, with proper medical care and lifestyle adjustments, women can successfully manage these conditions and lead a quality life.