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What causes clots instead of blood during menstrual flow?

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Posted on Mon, 1 Dec 2014
Question: Many issues... I'm 40 for the past 6 mos. my menstrual cycles have produced more & more large clots up to golf ball size last week my cycle had No flow at all, only clots in varied sizes. Following this cycle severe heartburn inducing brown grainy oily vomiting. Pepto & Zantac helped but not completely. Now that it is lessened I have loose orange & black tarry stools with blood throughout.
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Answered by Dr. Soumya (26 minutes later)
Brief Answer:
Endoscopy

Detailed Answer:
Hello

Welcome to health care magic.

I see 2 different issues here.

1. Passing of large clots could probably be due to increased endometrial thickness or fibroid or a polyp. An ultrasound scan would help differentiate these conditions and provide clues for further treatment. Please get ultrasound scan done.

2. Severe gastritis might have lead to bleeding in intestine and hence black stool. You might need toget an endoscopy of upper GI tract if this continues for a week. Meanwhile continue medicines you are taking.
Above answer was peer-reviewed by : Dr. Bhagyalaxmi Nalaparaju
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Dr. Soumya

OBGYN

Practicing since :2010

Answered : 3055 Questions

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What causes clots instead of blood during menstrual flow?

Brief Answer: Endoscopy Detailed Answer: Hello Welcome to health care magic. I see 2 different issues here. 1. Passing of large clots could probably be due to increased endometrial thickness or fibroid or a polyp. An ultrasound scan would help differentiate these conditions and provide clues for further treatment. Please get ultrasound scan done. 2. Severe gastritis might have lead to bleeding in intestine and hence black stool. You might need toget an endoscopy of upper GI tract if this continues for a week. Meanwhile continue medicines you are taking.