1. The spouse may be ill tempered.
2. The spouse may have a dull attitude towards physical relationship.
3. The spouse/self may lack good health.
4. The marriage may be considerably delayed.
5. The birth of children may be delayed/children may suffer illness or early death/lack of progeny.
6. Lack of mental compatibility.
7. Divorce/separation due to any of the foregoing factors individually or collectively in the unfavorable periods in operation.
8. The vacuum in life created by marriage being denied.
9. Impact of separation forces i.e. the impact of the functional malefic planets on the houses / significators of marriage.
10. What is basic understanding between the partners?
11. Can you/they get along with other partner for long time?
12. Life Span of Spouse
13. Sexual Compatibility/Strength of the spouse

Cent percent marital bliss is a rare phenomenon. However, there are cases where the discords in marital affairs are momentary. Vedic Astrology can be helpful in avoiding the circumstances leading to the baneful happenings by matching the horoscopes for mental compatibilities, supplementing the planetary drawbacks in the horoscopes of intending matches and seeing whether main period and the sub-periods in operation will have any bad effect on the marital alliance. Although it is said that marriages are settled in heaven, yet there is tremendous help which can be provided by Vedic Astrology in the manner mentioned in the preceding sentence and suggestion of remedial measures for weak planetary combinations as well as for the afflictions of malefic planets. Advance astrological advice and astral remedies for the impending circumstances provide mental strength to the natives for bearing the tensions and strains.