The Bladder And The Womb: Why Does my Period Only Come Out When I Pee

why does my period only come out when i pee

Why Does my Period Only Come Out When I Pee

Have you ever wondered why your period seems to only come out when you pee? It can be quite perplexing, but there are a few possible explanations for this phenomenon. One reason could be the position of your cervix during menstruation. When you have your period, the cervix opens slightly to allow menstrual blood to pass through. If your cervix happens to be positioned in such a way that it aligns with your urethra, the flow of urine might help facilitate the release of menstrual blood.

Another possibility is that urination causes muscular contractions in the pelvic area. These contractions could potentially stimulate the uterus and prompt it to expel more menstrual blood. Additionally, during urination, there may be increased pressure on the bladder and surrounding muscles which can affect blood flow in the pelvic region, leading to a stronger or more noticeable flow of menstrual blood.

Understanding The Menstrual Cycle

The Basics of The Menstrual Cycle

The menstrual cycle is a complex, natural process that occurs in the female reproductive system. It involves a series of hormonal changes and physiological events that prepare the body for potential pregnancy each month. On average, a menstrual cycle lasts about 28 days, although it can vary from person to person.

During the menstrual cycle, several key events take place. It begins with menstruation, also known as your period. This is when the lining of the uterus sheds and is expelled through the vagina. It’s common for women to notice blood coming out when they pee during their period.

Hormonal Changes During tTe Menstrual Cycle

Hormones play a crucial role in regulating different stages of the menstrual cycle. Two key hormones involved are estrogen and progesterone.

  • Estrogen: This hormone helps stimulate follicle development in the ovaries and prepares the uterine lining for implantation.
  • Progesterone: Once ovulation occurs (the release of an egg from one of your ovaries), progesterone levels increase to support pregnancy by thickening and maintaining uterine lining.

Common Factors Affecting Menstruation

Several factors can influence how your period manifests itself or why you may notice blood only when you pee:

  1. Urinary Tract Infections (UTIs): UTIs can cause inflammation or irritation in your urinary tract, which can make you more aware of the presence of blood when you urinate. If you suspect a UTI, it’s essential to seek medical attention.
  2. Uterine Abnormalities: Certain conditions like fibroids (noncancerous growths in the uterus) or polyps (abnormal tissue growth) can affect your menstrual flow and potentially lead to spotting or bleeding only during urination.
  3. Hormonal Imbalances: Any disruption in hormone levels, such as those caused by stress, certain medications, or underlying medical conditions, may impact your menstrual cycle and result in irregular bleeding patterns.
  4. Infections or Inflammation: Infections within the reproductive organs or inflammation in the urinary tract can cause discomfort and abnormal bleeding patterns.

The Link Between Urination And Periods

Many women have experienced the perplexing situation of their period only coming out when they pee. It can be quite a puzzling phenomenon, but there is actually a logical explanation for this occurrence. Let’s delve into the link between urination and periods to shed some light on this curious connection.

  1. Bladder Contractions: One possible reason why your period may coincide with urination is due to bladder contractions. During menstruation, the uterus contracts to expel its lining, causing pressure on the nearby bladder. These uterine contractions can stimulate the nerves around the bladder, leading to increased urges to urinate.
  2. Hormonal Influence: Hormones play a significant role in regulating both menstruation and urine production. The menstrual cycle involves fluctuations in hormone levels, particularly estrogen and progesterone. These hormones not only influence the shedding of the uterine lining but also affect urinary function by altering fluid balance within the body. As hormonal changes occur during your period, it can impact urine production and frequency.
  3. Uterine Position: The position of your uterus can also contribute to the correlation between urination and periods. Some women have a retroverted uterus, meaning it tilts backward instead of forward towards the bladder. When you experience uterine contractions during menstruation, it can put additional pressure on your bladder due to its close proximity.
  4. Increased Blood Flow: Another factor that could explain why you notice your period when you pee is increased blood flow to pelvic organs during menstruation. As blood vessels dilate in preparation for shedding the uterine lining, more blood flows through these areas, including your bladder and urethra. This heightened blood flow might lead to heightened sensitivity or discomfort while passing urine.


In conclusion, the phenomenon of experiencing period blood only when urinating can be attributed to a few possible factors. While it may be a cause for concern and confusion, it’s important to approach this issue with an open mind and consult a healthcare professional for accurate diagnosis and advice.

If you have concerns about irregular bleeding patterns or notice blood only when you pee during your period, schedule an appointment with your healthcare provider. They will be able to evaluate your symptoms, conduct necessary tests, and provide appropriate guidance for managing your menstrual health.