Question: Does chromosomal abnormalities cause a miscarriage?

Just worried because of two miscarriages in a row.
should they try IVF

Her chromosome test results and cysts fluid test has not yet come. They say in USA they will send the report to the doctor. its more than 13 days. I am now more worried about the cyst . Hope it wi.. be benign. I have an MRI report which she took in XXXXXXX when she was here in April 2016 for back pain. The MRI also found the cyst.
It said paranormal cyst in ovaries. Dont know why her doc said it was blocking the fallopian tube. Which means according to him only one tube is functioning. I am so worried about her cyst result. He deflated the cyst and took out the liquid. He felt it is rare and has not seen any cyst in the tube. i am pasting the mri report below. Can you help me interpret the cyst part. Thanks doctor
Nervous and cannot sleep

MRI Report - Lumbar Spine
Clinical details:
v Back pain.
Technique:
v Axial T2 Fast Spin Echo
v Sagittal T1 Spin Echo and T2 Fast Spin Echo
v Coronal T2 STIR
Findings:
v Loss of T2 bright disc signal is seen at L4-L5 and L5-S1 levels indicating disc
dessication.
v Focal T2 bright signal is seen in the posterior annulus of L3-L4, L4-L5 and
L5-S1 discs indicating annular tear.
v Marginal osteophytes are seen at lower lumbar levels.
v Ligamentum flavum hypertrophy at L4-L5 and L5-S1.
v Posterocentral disc protrusion is seen at L2-L3 level causing indentation of
theca. No significant spinal canal stenosis or nerve root compression is seen.
v Right paracentral disc protrusion is seen at L3-L4 level causing indentation of
theca. The disc is seen closely abutting the right traversing L4 nerve root. No
spinal canal stenosis.
v Diffuse disc bulge is seen at L4-L5 level causing indentation of theca with no
neural compromise.
v Posterocentral disc protrusion is seen at L5-S1 level causing indentation of
theca. The disc is seen to cause mild compression over the left traversing S1
nerve root. No spinal canal stenosis.
v The AP spinal canal dimensions at various levels are as follows:

Ancillary findings:
v The visualized pelvis shows normal uterus.
v The right ovary is normal sized. It measures 3.5 x 1.5 cm.
v A thin walled right paraovarian cyst measuring 5.5 x 5.0 cm is noted.
v The left ovary is normal sized. It measures 3.0 x 1.6 cm. A left paraovarian
cyst of 2.5 x 1.0 cm is seen.
v Both ovaries appear hyper on T2 and hypointense on T1. No solid component
is made out.
Impression:
v Lumbar spondylosis.
v Posterocentral disc protrusion at L2-L3 level with no neural compromise.
v Right paracentral disc protrusion at L3-L4 level closely abutting the right
traversing L4 nerve root.
v Diffuse disc bulge at L4-L5 level with no neural compromise.
v Posterocentral disc protrusion at L5-S1 level causing mild compression over
the left traversing S1 nerve root.
v Normal sacroiliac joints.

Thanks you doctor. The cyst was benign.
The chromosome testing results will take two weeks.
will talk to you later.
Thanks for all the help.sorry forgot to ask
could it be the disc prolapse that is leading to the miscarriage?