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The *Daquan* states: Postpartum stroke manifesting as trismus (lockjaw) occurs because the qi and blood are deficient, allowing wind pathogen to invade the tendons of the mandible, cheeks, and mouth. The tendons of the three hand-yang meridians knot at the mandible. Childbirth damages the zang-fu organs and injures the tendons and vessels. When wind takes advantage of this deficiency, the tendons and vessels of the three yang meridians become relatively weak; upon exposure to wind-cold, they contract and spasm, thus causing trismus.

The *Daquan* states: Postpartum opisthotonos (arching of the back like a bow) occurs because the body is deficient and susceptible to wind, with the wind pathogen invading the various yang meridians. The human yin and yang meridians circulate around the body. When wind pathogen enters these various yang meridians taking advantage of the deficiency, it causes the waist and back to reverse and spasm, making the body rigid and contracted like an anglebow.

Xue Lizhai stated: The aforementioned conditions result from the depletion of qi and blood, loose couli (skin pores and interstices), and excessive sweating. Suffering from these symptoms indicates a deficiency pattern; treatment should primarily focus on consolidating qi and blood. This condition represents extreme deficiency of qi and blood. It is appropriate to use large doses of Renshen (Ginseng Radix et Rhizoma), Baizhu (Atractylodis Macrocephalae Rhizoma), Danggui (Angelicae Sinensis Radix), Baizhu (Atractylodis Macrocephalae Rhizoma), and Rougui (Cinnamomi Cortex) to nourish and tonify. If there is no response, add Fuzi (Aconiti Lateralis Radix Praeparata) and double the dose of Renshen, naming the formula Shenfu Tang (Ginseng and Aconite Decoction). If there is still no response, it is because the medicinal power has not yet reached the disease site; one should administer more frequently or in larger quantities.

Xue Lizhai stated: "Jing" refers to tendon and vessel contraction/spasm. "Song" refers to tendon and vessel flaccidity/relaxation. The classics state: The Liver governs the tendons and stores blood. Liver qi is yang and fire; liver blood is yin and water. After childbirth, when yin blood is lost excessively, yang fire becomes blazing, and the tendons fail to receive nourishment, leading to these symptoms. The treatment method involves using Bazhen Tang (Eight Treasures Decoction) added with Mudanpi (Moutan Cortex) and Gouteng (Uncariae Ramulus cum Uncis) to generate yin blood, thereby retreating yang fire and resolving all symptoms. If there is no response, use Six Junzi Tang (Six Gentlemen Decoction) plus Xiong (Chuanxiong Rhizome), Danggui (Angelicae Sinensis Radix), Mudanpi (Moutan Cortex), and Gouteng (Uncariae Ramulus cum Uncis) to tonify spleen earth. Blood is born from the supreme yin, and the supreme yin refers to spleen earth. If this condition presents with aversion to cold in the limbs and a faint, thin pulse, it indicates a true cold pattern. If the pulse is floating and large, accompanied by fever, irritability, and thirst, it indicates a false heat pattern; only by consolidating the root is it advisable to proceed. If there is powerless convulsion, eyes fixed upward staring (daiyan), opisthotonos, and sweat beading like pearls, it is incurable.

The *Daquan* states: Postpartum wind-stroke manifesting as spasms and contractions of the tendons and vessels in the four limbs is due to insufficiency of qi and blood and total deficiency of the zang-fu organs. Within the first month postpartum, rising early and engaging in labor damages the zang-fu organs. The deficiency has not yet recovered, leaving the body vulnerable to wind pathogen. Wind-cold pathogen lodges in the skin and meridians, causing stubborn numbness and insensitivity, emaciation, fatigue, and shortness of breath. When wind pathogen enters the tendons and vessels and combines with cold, it leads to tendon contraction and spasm.