Passing small clots during your period is something many women experience and is often considered a normal part of menstruation. But when clots become large, frequent, or are accompanied by unusually heavy bleeding, they can be a sign that something else is going on — and that a gynecology evaluation may help.
Blood clots form when menstrual blood pools in the uterus and begins to coagulate before being expelled. The size, frequency, and pattern of clotting can provide important clues about the health of your uterus and hormonal balance. Most causes are very treatable once properly identified.
Dr. Andrei takes a thorough, education-first approach to every evaluation. Her goal is not simply to manage your symptoms, but to understand what is driving them — and to offer you a clear, personalized plan that fits your life and your goals.
Not every clot requires medical attention — but certain patterns are worth discussing with a gynecologist. Common concerns that may prompt an evaluation include:
- Passing clots larger than a quarter regularly during your period
- Clotting accompanied by soaking through a pad or tampon every hour or less
- Clots that appear throughout your entire period, not just at the start
- Heavy bleeding with clots that lasts longer than 7 days
- Needing to double up on menstrual protection to prevent leaking
- Waking at night to change pads or tampons due to heavy flow
- Clotting accompanied by significant pelvic pain or cramping
- Feeling fatigued, weak, or lightheaded during or after your cycle
- A noticeable change in your clotting pattern compared to previous cycles
- Any clotting or bleeding that occurs after menopause
Occasional small clots are usually not a cause for concern, but a persistent or worsening pattern should always be evaluated by a gynecology provider.
Most clotting during a period is not an emergency, but certain symptoms require timely evaluation. Contact our office as soon as possible — or go to the nearest emergency room — if you notice:
- Soaking more than one pad or tampon per hour for two or more consecutive hours
- Passing clots larger than a golf ball
- Heavy bleeding with clots accompanied by severe pelvic pain or fever
- Any bleeding or clotting after menopause (12 or more months without a period)
- Sudden onset of unusually heavy bleeding with clots unlike anything you have experienced before
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Several gynecologic and hormonal conditions can cause or contribute to clotting during your period. Identifying the underlying cause is essential — because the most effective treatment depends entirely on an accurate diagnosis. Common causes may include:
Uterine Fibroids
Noncancerous growths of the uterine muscle are one of the most common causes of heavy periods with large clots. Fibroids can distort the uterine cavity, interfere with normal contraction, and significantly increase menstrual blood loss. Their size and location often determine how severely they affect bleeding patterns.
Adenomyosis
Adenomyosis occurs when tissue similar to the uterine lining grows into the muscular wall of the uterus. This causes the uterus to become enlarged and can result in heavy, prolonged, and painful periods with significant clotting. It is frequently underdiagnosed and can substantially affect quality of life.
Hormonal Imbalance
When estrogen and progesterone levels are out of balance, the uterine lining can build up more than usual. When it sheds during menstruation, the heavier volume of tissue and blood is more likely to clot before it can exit the uterus. Hormonal imbalances can stem from perimenopause, PCOS, thyroid disorders, or other endocrine conditions.
Uterine Polyps
Small benign growths on the inner wall of the uterus can disrupt normal menstrual flow and contribute to heavier bleeding with clots. Polyps are very common and highly treatable through minimally invasive procedures.
Endometriosis
When tissue similar to the uterine lining grows outside the uterus, it can cause heavy, irregular bleeding and significant clotting during periods. Endometriosis often also causes severe menstrual pain and may be associated with other symptoms throughout the cycle.
Perimenopause
Hormonal fluctuations in the years leading up to menopause commonly cause cycles to become heavier, less predictable, and more prone to clotting. While this is a normal transition, the symptoms can be significant and are very treatable.
Bleeding Disorders
Conditions such as von Willebrand disease or other clotting disorders can cause unusually heavy menstrual bleeding with clots. A thorough medical and family history is an important part of every evaluation for abnormal bleeding.
Because symptoms can overlap between different conditions, an accurate diagnosis begins with a careful clinical evaluation — not assumptions.
If you choose to schedule an appointment, your visit will begin with a careful discussion of your symptoms, cycle patterns, and medical history. Care at Lapeer Women's Health is led by Dr. Ramona D. Andrei, MD, PhD, FACOG — with a focus on clear communication and education-first care at both the Lapeer and Rochester Hills offices.
Step 1: Listen & Evaluate
Dr. Andrei reviews your clotting pattern, cycle timing, and medical history to understand what may be contributing — without rushing to conclusions or assuming the cause.
Step 2: Identify the Cause
When appropriate, Dr. Andrei may recommend a pelvic exam, pelvic ultrasound, lab work, or endometrial biopsy to better understand why clotting is occurring and whether a structural or hormonal cause is present.
Step 3: A Plan That Fits You
If treatment is needed, you will receive a personalized plan tailored to your diagnosis, your goals, and your stage of life — from conservative management to minimally invasive procedures if needed.
Many women normalize heavy periods and clotting because they have experienced it for years — or because they were told it was simply part of being a woman. It doesn't have to be.
Most causes of heavy menstrual clotting are identifiable and very treatable. Understanding what's driving your symptoms is the first step toward feeling better and protecting your long-term health.
Dr. Ramona D. Andrei and the team at Lapeer Women's Health are here to help — with compassionate, personalized gynecologic care at both the Lapeer and Rochester Hills offices.
Blood Clots During Your Period
If you are passing large or frequent blood clots during your period, our team at Lapeer Women's Health is here to help with compassionate, personalized care at both our Lapeer and Rochester Hills offices.
Schedule a Gynecology VisitThe information on this page is intended for educational purposes only and does not constitute medical advice. Reading this content does not establish a physician-patient relationship with Dr. Ramona D. Andrei or Lapeer Women's Health. Individual symptoms, diagnoses, and treatment options vary. Please consult a qualified healthcare provider for advice specific to your situation. Content reviewed by Dr. Ramona D. Andrei, MD PhD FACOG.
Gynecologic care for women of every age
Lapeer Women’s Health — Rochester Hills
2710 S Rochester Rd, Suite 2
Rochester Hills, MI 48307
Serving patients in Lapeer, Rochester Hills, and surrounding communities throughout Southeast Michigan.