What causes calf tenderness and weakness?

Calf weakness may be gastrocnemius muscle strain, lumbar spinal stenosis, hypokalemia and other diseases.
1. Gastrocnemius muscle strain: it may be caused by fatigue of the gastrocnemius muscle of the calf due to too much walking or strenuous exercise, and the symptoms can be alleviated through rest.
2. Lumbar spinal stenosis: lumbar hyperplasia, hypertrophy of ligamentum flavum, herniated intervertebral discs can cause lumbar spinal stenosis, and compression of nerves can lead to soreness and weakness of calves, numbness, and limping.
3. Hypokalemia: It is caused by insufficient intake or excessive loss of potassium, which can lead to soreness and weakness of calves, and the measurement of blood potassium is lower than normal, and the symptoms can be alleviated by supplementing potassium chloride.
If there is no relief from rest, you need to go to the hospital to check the lumbar spine MRI film and blood potassium test.