Lacustrine systems include all wetland and deepwater habitats associated with depressions or damned channels greater than 8 ha in area, and which have less than 30% of their area dominated by trees, shrubs, or emergent vegetation.
There are a wide variety of conditions that can cause thigh pain. For example, thigh pain can be caused by physical activity, injury, or age-related wear and tear on the hips and knees, which may cause pain or discomfort in the thigh area near the joint.
Chronic Back Pain. While most back pain is caused by muscle strain, injury or spinal deformity, it can also be caused by a systemic or rheumatic illness. Pain is considered chronic when it is present for more than three months. Back pain can develop anywhere from the neck to the lower spine.