To better understand endometriosis, it’s helpful to imagine how the menstrual cycle works. Each month, the endometrium thickens to prepare for a possible pregnancy. If pregnancy doesn’t occur, the tissue sheds and is eliminated through menstruation. In endometriosis, the tissue that grows outside the uterus also responds to hormones, but it lacks a way to escape. This causes internal inflammation, persistent pain, and, in some cases, microscopic internal bleeding that irritates nearby organs.

The most well-known symptom of endometriosis is severe menstrual pain. This isn’t the typical discomfort relieved by a painkiller; it’s a debilitating pain that forces women to miss work, school, or cancel everyday activities. Many women describe this pain as sharp, deep, or constant, and it tends to worsen over time.
Another very common symptom is chronic pelvic pain, that is, pain in the lower abdomen that is not limited to menstruation. It can appear days before menstruation, during ovulation, or even be present almost every month. This type of pain is often one of the main reasons why women seek medical attention, although a correct diagnosis is not always reached immediately.

Endometriosis can also cause pain during or after sexual intercourse. This symptom, known as dyspareunia, is often deep and persistent, and can seriously affect the intimate and emotional life of those who experience it. Many women feel uncomfortable talking about this issue, which contributes to the problem being further silenced.
Digestive problems are another often overlooked sign. Abdominal bloating, diarrhea, constipation, nausea, or pain during bowel movements can all be related to endometriosis, especially when the tissue affects the intestines. In some cases, these symptoms are mistaken for disorders such as irritable bowel syndrome, delaying a correct diagnosis.

Extreme fatigue is another common, yet poorly understood, symptom. It’s not simply tiredness, but a constant feeling of exhaustion that doesn’t improve with rest. Chronic pain, inflammation, and hormonal changes can all contribute to this state, affecting concentration, mood, and daily productivity.
One of the most sensitive aspects of endometriosis is its link to infertility. It is estimated that a significant percentage of women with difficulty conceiving have endometriosis. This can be due to inflammation, adhesions that alter the anatomy of the reproductive organs, or problems with egg quality. However, it is important to clarify that not all women with endometriosis will be infertile, and many are able to conceive with or without treatment.

In addition to physical symptoms, endometriosis has a significant emotional impact. Living with constant pain, feeling misunderstood, or hearing that “it’s normal to suffer with menstruation” can generate anxiety, frustration, and even depression. Late diagnosis, which in many cases can take years, exacerbates this psychological impact.