Yes, fibroids and cysts can increase the occurrence of bleeding or cause alterations in bleeding that lead to clots. In any case, having a fibroid does not necessarily indicate that the vaginal bleeding has clots.
Read the full article on: Why do blood clots occur during menstruation? ( 84).
Andrea Rodrigo
B.Sc., M.Sc.
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.