Mars in Houses Synastry Meanings: 1st through 12th House

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Mars is the planet of action and of conflict and is known as the “Planet of War.”

The house placement of Mars in synastry indicates the area of life that the other person will both excite and irritate.

Synastry refers to a set of astrological techniques to determine how two people will relate to each other.

One step of a synastry reading is to overlay two people’s birth charts over each other to see what houses each other’s planets are in.

Mars is very important in synastry. This planet shows how we go about getting what we want.

Mars also shows how we express anger.

This planet brings energy to whatever it touches. In romantic relationships, Mars generates sexual chemistry.

Mars in 1st House Synastry

Someone whose Mars is in your 1st House will energize you. This is also someone who can always get under your skin.

If this is a potential romantic partner, you will either find them irresistibly attractive or incredibly annoying. Often it will be a little of both.

It is important to exercise caution around someone whose Mars is in your 1st House.

This person can get always get a reaction out of you, but it is not always one that you would like.

It is hard to resist a person whose Mars is in your 1st House.

If they want you to do something, you will either do it immediately or do the opposite just to spite them.

Either way, you are being influenced or even controlled by them.

If this is someone who is trustworthy, they can influence you to change for the better.

If this is someone who is not trustworthy, you may need to stay away from them to avoid their influence.

Mars in 2nd House Synastry

If someone’s Mars is in your 2nd House, they have the potential to impact your finances. In most cases, this impact is negative.

If this is a person who you intend to marry or have a long-term partnership with, it will be important to have a long talk regarding finances.

This is a person who can tempt you to spend money unwisely if you are not careful.

A person whose Mars is in your 2nd House can have a strong influence on your feelings of self-confidence and self-worth.

This person has the power to build you up and to tear you down.

Even if this person is trustworthy and has your best interests at heart, you are likely to find yourself in situations where you must stand up for yourself to them.

Mars in 3rd House Synastry

It can be hard to communicate with someone whose Mars is in your Third House. You are likely to find yourself arguing with this person a lot.

On some level, this person might feel like a sibling to you, but not necessarily in a pleasant way.

No matter what kind of relationship you have, it will have elements of sibling rivalry to it.

On a positive note, this person will help you to hone your thoughts and ideas.

They will challenge you to be able to defend your opinions, which can ultimately help your ability to express yourself overall.

Mars in 4th House Synastry

Someone whose Mars is in your 4th House will shake you up on a very deep level. This is someone who can reach into your deepest childhood memories.

It can be hard for you to react rationally to this person, who will likely remind you of one or both of your parents.

While this can be uncomfortable, it can also be healing, provided that this person is trustworthy and willing to be with you as you work through your emotions.

We are often drawn to people who trigger things that we need to work on.

Be willing to look at your past, but also remember who you are in the present.

If you can do this, a relationship with someone whose Mars is in your 4th House can have a great deal of potential.

Mars in 5th House Synastry

If you have a romantic relationship with someone whose Mars is in your 5th House, this person is irresistibly attractive to you.

This placement can create a great deal of sexual chemistry with it. In any type of relationship, a person with Mars in your 5th House will be a lot of fun to be around.

This person will lead you on adventures and encourage you to do things that will test your courage.

Depending on your nature and the type of person who is triggering your 5th House, you might be tempted to do things that are not safe or wise with them.

Mars in 6th House Synastry

Mars likes being in the 6th House, but this is not the best placement when it comes to synastry, especially when it comes to a romantic relationship or a friendship.

If someone’s Mars is in your 6th House, on some level they will feel like a stern taskmaster to you.

While this is great if the person is your coach or personal trainer, it can put a strain on more personal relationships.

So long as this person is trustworthy and cares about you, though, they can be extremely helpful in your growth and development.

This person sees your flaws but also sees who you can become.

They will help give you the drive and motivation to be your best.

Mars in 7th House Synastry

The 7th House is known as the House of Marriage.

Yet, this house governs all one-on-one relationships of equals, including business partners and known enemies.

Having someone’s Mars in your 7th House is tricky. This person may be attractive to you, but your relationship with them can be stormy.

This could be a relationship with a “frenemy,” or it could be a marriage that turns into a bitter divorce.

This could also be a relationship that gives you strength and courage through any difficulties that life throws your way.

Mars in 8th House Synastry

If someone’s Mars is in your 8th House, this could represent a temptation to indulge in your darker nature.

In a romantic relationship, this can make this person extremely attractive. Even so, it is advised to exercise caution before getting in too deep.

Even if this person is completely trustworthy, they are likely to bring out things in you that you would prefer to keep hidden.

Whatever type of relationship this is, there is the potential for it to be very healing if you are willing to look inside yourself and make changes.

Mars in 9th House Synastry

Someone whose Mars is in your 9th House will challenge you to step outside of your comfort zone.

This may be someone from a different culture or religion than you are. This could also be someone who has a different way of looking at the world.

If you are prepared to be open-minded and broaden your horizons, a relationship with this person could be quite an adventure.

No matter what kind of relationship you have with this person, you are guaranteed to learn quite a bit.

Mars in 10th House Synastry

The 10th House signifies your career and public reputation. If someone’s Mars is in this house, they will impact your public standing in a dramatic way.

The impact could be good, particularly if this person is in a position to help you advance.

They will be a catalyst and a cheerleader for you.

On the other hand, the impact on your career or reputation could be problematic, especially if your relationship is volatile.

Even if your relationship is a personal one such as a friendship or a marriage, they are likely to also be your social superior in some way.

Mars in 11th House Synastry

The 11th House is one of the relationship houses, and it governs friendships. It also governs allies and organizations.

If someone’s Mars is in this house, they have the potential to be a powerful ally.

This is a person who has your back and who will protect you whenever they can.

Mars in this house can also indicate that this person is an enemy or a rival, but only if there is testimony in the rest of the synastry reading for this.

Even if this person is a rival, it is usually a friendly one that is helpful to both of you.

You will help each other to grow and improve.