It's a topic that fascinates many, but people don't like to discuss on a personal level. How can you tell if a spouse is cheating? Are there any concrete signs outside of physically catching them? There are several classic "signs" you can look for, however for concrete proof, you will likely need photographs, voice recordings, or other such irrefutable evidence.

This can be very unstable territory. You may have intuition but who do you turn to. Relatives may or may not help matters. Friends may or may not be trustworthy. Private investigators can be incredibly expensive and you may not find the quality professional you would like in your area.

With this information you should take matters into your own hands. First, do you believe your suspicion is grounded? Do you have issues in your own life that may be causing unnecessary insecurity on your part? If nothing has changed in your life, it's time to examine that of your spouse. These symptoms can be common for both men and women. The most important element to maintain is your composure. If your spouse suspects you are on to their activities, they will be extra careful, and it will be twice as difficult to catch them.

The most noticeable symptom will likely be distance. They don't want to spend time with you or have interest in being intimate. They may seem to struggle for reasons to avoid spending time with you or your family. They may also have a new interest in privacy and won't talk on the telephone or answer a text message until you are out of visibility.

Without logical reason have they become overly concerned about their appearance? Have they recently became secretive? Do they hide credit card statements or pay stubs from you? Do they hide cell phone records or insist that only they answer their phone? Have they been receiving phone calls they claim to be wrong numbers?"

You may notice unusual computer habits. They may wait to go online when everyone else is in bed or they may fake insomnia as a reason to be on the computer. Check to see if they have another or "free" email account. Around 30 percent of those frequenting online dating services are already married.

A high quality Hidden Camera is a great first step. Technology today has created cameras that are perfect for such purposes. Most are small and can fit through pin holes, under doors, and hidden easily. Voice recorders are wonderful and provide a great alternative to catching what your spouse is saying on their private telephone calls.

You can use your internet browser's "history" to see what sites have been visited or if it appears your spouse is deleting their history. Software is readily available that will let you track their online activities. No matter what method you use just remain calm.