Manipura is symbolised by a downward pointing triangle with ten petals (According to Wikipedia).
This chakra is the third chakra known as the solar plexus. It relates to our personal power, self-identity, ego, as well as our metabolism. It’s one of the first chakras to be affected when an emotional situation occurs (Debbie Creagh).
This chakra relates to the physical functions of the Stomach, Liver, Large Intestine and Small Intestine, Pancreas, Outer Adrenal Glands, Heart, Lungs and Sympathetic Nervous system. Congestion of this chakra can lead to symptoms such as Arthritis, diabetes, digestive disorders, ulcers, problems with the stomach, liver, colon and intestine. It can also cause anorexia or bulimia, pancreatitis, gallstones, allergies (Lee Wei Dee).
(Citing Siam Reiki materials)