When the urine is red and looks like blood, this is caused by worry and fright leading to deficiency-heat in the Heart Qi. External pathogenic factors contend with exogenous heat within the Heart, resulting in red urine.

For treating Kidney heat causing bladder astringency and pain, with urine red as blood, the following formula is suitable: Yupi San (Elm Bark Powder).
Ingredients: Ulmi Cortex (Yubai Pi, 4 liang, cut into small pieces), Malvae Semen (Kuizi, 4 liang), Plantaginis Semen (Cheqianzi, 4 liang), Akebiae Caulis (Mutong, 4 liang, cut into small pieces), Talcum (Huashi, 4 liang), Honey (Mifengmi, 6 liang).
Preparation and Administration: Crush the above herbs. Decoct in 10 dou of water until reduced to 2 sheng. Filter through silk cloth to remove dregs. Add honey and boil for five to seven boils. Take one small cup warm before meals.

For treating urine red as blood, restlessness of the mind and spirit, and pain in the urinary tract, the following formula is suitable:
Ingredients: Rehmanniae Radix Preparata (Sheng Gan Dihuang, 2 liang), Scutellariae Radix (Huangqin, 1 liang), Glycyrrhizae Radix et Rhizoma (Gancao, 1 liang, honey-fried until slightly reddish and cut), Plantaginis Semen (Cheqianzi, 1 liang), Angelicae Sinensis Radix (Danggui, 1 liang, cut and lightly stir-fried), Natrii Sulfas (Chuan Mangxiao, 1 liang).
Preparation and Administration: Coarsely powder the above herbs. Take 4 qian per dose. Decoct in one zhong zhan of water until reduced to 6 fen. Remove dregs. Take warm before meals.

For treating urine resembling blood color, with distension, fullness, and pain in the lower abdomen, the following formula is suitable: Maimendong Wan.
Ingredients: Ophiopogonis Radix (Maimendong, 2 liang, heart removed and baked), Astragali Radix (Huangqi, 1 liang, cut), Poria (Fushen, 0.5 liang), Trichosanthis Radix (Gualougen, 1 liang), Scutellariae Radix (Ziqin, 1 liang), Ginseng Radix (Renshen, 0.5 liang, radix abortus removed), Paeoniae Radix Rubra (Chishaoyao, 0.5 liang), Typhae Pollen (Puhuang, 1 liang), Glycyrrhizae Radix et Rhizoma (Gancao, 0.5 liang, honey-fried until slightly reddish and cut), Plantaginis Semen (Cheqianzi, 1 liang), Akebiae Caulis (Mutong, 1 liang, cut), Rehmanniae Radix Preparata (Shenggan [referring to Sheng Gan Dihuang], implied from context/precedence).
Preparation and Administration: Powder the above herbs finely. Mix with refined honey and pound 300–500 times. Form pills the size of paulownia seeds. Take 30 pills with millet gruel broth before meals.

For treating red urine with astringency and pain, the following formula is suitable: Maogen Yinzi.
Ingredients: Imperatae Rhizoma (Baimaogen, 2 liang), Poria Cocos cum Ligno Rubra (Chifuling, 1 liang), Ginseng Radix (Renshen, 1 liang, radix abortus removed), Rehmanniae Radix Preparata (Sheng Gan Dihuang, 2 liang), Akebiae Caulis (Mutong, 2 liang, cut), Malvae Semen (Kuizi, 1 liang).
Preparation and Administration: Finely cut and mix evenly. Take 0.5 liang per dose. Decoct in one large zhan of water until reduced to 5 fen. Remove dregs. Take warm before meals.

For treating stagnation-heat in the Small Intestine, with urine resembling red flower juice, the following formula is suitable:
Ingredients: Akebiae Caulis (Mutong, 2 liang, cut), Malvae Semen (Kuizi, 1 liang), Talcum (Huashi, 2 liang), Perillae Folium? No, Pyri Folium? No, Pyrifolii Folium? Actually Shiwei is Pyrrosiae Folium (Shiwei, 1 liang, hairs removed), Scutellariae Radix (Ziqin, 1 liang), Glycyrrhizae Radix et Rhizoma (Gancao, 1 liang, honey-fried until slightly reddish and cut).
Preparation and Administration: Coarsely powder the above herbs. Take 4 qian per dose. Decoct in one zhong zhan of water until reduced to 6 fen. Remove dregs. Take warm before meals.