Seeing a jelly-like clot in the bathroom can suddenly startle you. Noting how this period differs from your usual one is more helpful for your visit than comparing photos to see whether the shape is similar.
Why can clots appear?
During menstruation, blood and tissue from the endometrium are passed together. When blood pools for a short time, or the amount is large, it can be seen as clots. This alone cannot be said to mean that there is a specific condition in the uterus.
If clots larger than usual keep coming out, or the amount of bleeding has increased, that is reason to look into the cause. In a visit, several possibilities are distinguished, including structural changes in the uterus, ovulation and hormone changes, and medicines or conditions that affect bleeding. There is no need to decide that it is "bad blood" because the color is dark, or to self-treat in order to expel it.
What is helpful to write down?
- How quickly does it get soaked? Write down the type of pad and the interval between changes, and whether you changed it because it was soaked through or for convenience. Leaking onto clothes or bedding is also helpful information.
- How often do the clots repeat? Please tell us the approximate size and number of times, as far as you remember. You do not need to collect and store them yourself, or try hard to measure them exactly.
- Are there any other changes? Check whether your period has become longer, whether there is bleeding between periods, and whether pain, fatigue, shortness of breath, or dizziness come with it. Please also pass on the medicines you take and the possibility of pregnancy.
When should you not delay care?
The NHS presents having to change a pad every 1 to 2 hours, bleeding that lasts beyond 7 days, or blood clots larger than about 2.5 cm as clues for looking into heavy menstrual bleeding. These figures are not a diagnostic cutoff or a criterion that "smaller than that is safe." If bleeding disrupts daily life, seek a consultation regardless of size.
If large clots keep repeating and bleeding has increased, it is best to book a visit and have it checked even if you do not have severe symptoms right away. If fatigue continues, whether you have anemia can also be looked into.
Are tests and treatment decided by clot size?
No. Menstrual history, an examination, and results such as blood tests and ultrasound when needed are looked at together. Whether you are pregnant and the effect of medicines can also be checked. Medicines that reduce bleeding, hormone treatment, or care according to the cause can be considered, but the same method is not used for everyone.
Do not stop prescribed medicines you are currently taking, such as anticoagulants, on your own because you are worried about bleeding. Adjusting a medicine must be discussed with the clinician who prescribed it. You can see how evaluation proceeds in Care guide for changes in bleeding.
For the criteria for what to watch, we referred to the NHS guide to heavy menstrual bleeding, and for blood clots and questions for a visit, we referred to the Cleveland Clinic explanation.