Short Message Service (SMS) is a text messaging service component of most telephone, World Wide Web, and mobile telephony systems.[1][1] It uses standardized communication protocols to enable mobile phone devices to exchange short text messages.
1 Mononeuropathy is any damage to a single nerve or group of nerves. 2  It causes pain in that part of the body. 3  Examples include carpal tunnel syndrome, which causes pain in the wrist, ulnar nerve dysfunction, which causes pain in the arm, and sciatica, which affects a nerve running down the legs.
Quick Answer. The causes of leg muscle pain and weakness include various conditions, such as deep vein thrombosis, gout, various injuries and sprains, according to Mayo Clinic. Other causes of leg pain and weakness are osteoarthritis, sciatica and varicose veins. Continue Reading.