Constipation

[-SEEKER-]

I usually have trouble during my first week on the trail. I carry Glycerin Suppositories which help most of the time. If you are out and experience a severe case where nothing helps you can use a plastic bag or wet wipe over the finger and resort to manual extraction. It may sound crude but it does work.
There is also the other extreme which I experienced last year, so now I will also carry anti-diarrhea medication.

[rocketsocks]

I usually have trouble during my first week on the trail. I carry Glycerin Suppositories which help most of the time. If you are out and experience a severe case where nothing helps you can use a plastic bag or wet wipe over the finger and resort to manual extraction. It may sound crude but it does work.
There is also the other extreme which I experienced last year, so now I will also carry anti-diarrhea medication.

A sliver of bar soap inserted thusly will set your sphincter to firein' as well.

[rocketsocks]

A sliver of bar soap inserted thusly will set your sphincter to firein' as well.

...and if you do it right, you can blow bubbles and pop em.

[Wülfgang]

First thing in the AM:

1 liter water + 1-2 packets Metamucil (or preferred) + caffeine source (powdered tea or coffee)

Eating tips:

1-2 cups dehydrated veggies with at least 1 daily meal
Some dried fruits throughout the day
Make sure ALL dehydrated food is thoroughly hydrated before eating; as another mentioned here if it isn't you create a dry impacted food log that will NOT move.

Avoid:

Too much fast food
Too much dairy in towns
Dehydration (obviously)
Holding it (again, duh)

[SCRUB HIKER]

On my first backpacking trip in high school, I didn't **** for six days. I'm not kidding. I've never had anything that extreme since then; I'd say I've had the problem of too much more often than too little. But there has still been the odd two-day stretch where I got stopped up because of something in my hiking diet. Has always gone away without the aid of pills.